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Secrets of the Underground

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...

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ROB NELSON: In a major city riddled
with underground passageways... - Secrets of the Underground

ROB NELSON: In a major city riddled with underground passage...

ROB NELSON: Deep in
the Pennsylvania woods - Secrets of the Underground

ROB NELSON: Deep in the Pennsylvania woods

ROB NELSON: Deep beneath
America's most notorious prison, - Secrets of the Underground

ROB NELSON: Deep beneath America's most notorious priso...

In the heart of Kentucky
bourbon country, - Secrets of the Underground

In the heart of Kentucky bourbon country,

..could a shadow government
be planning for the end of days? - Secrets of the Underground

..could a shadow government be planning for the end of days?

Was this the secret escape route
of notorious gangster Al Capone? - Secrets of the Underground

Was this the secret escape route of notorious gangster Al Ca...

There's, like, a whole bunch of
things here that are really odd. - Secrets of the Underground

There's, like, a whole bunch of things here that are re...

Is this where dozens
of missing labourers - Secrets of the Underground

Is this where dozens of missing labourers

I'll deploy advanced sonic technology - Secrets of the Underground

I'll deploy advanced sonic technology

And were their deaths accidental
or foul play? - Secrets of the Underground

And were their deaths accidental or foul play?

New ground penetrating
radar tests could reveal - Secrets of the Underground

New ground penetrating radar tests could reveal

I'll deploy state of the art
technology - Secrets of the Underground

I'll deploy state of the art technology

I'll use advanced imaging technology
to investigate. - Secrets of the Underground

I'll use advanced imaging technology to investigate.

And in Ohio, - Secrets of the Underground

And in western Washington, - Secrets of the Underground

And in western Washington,

Could this have been the focal point
of bloody human sacrifices? - Secrets of the Underground

Could this have been the focal point of bloody human sacrifi...

And in Southwestern Virginia, - Secrets of the Underground

And in Southwestern Virginia,

Meanwhile, at the bottom
of Lake Michigan - Secrets of the Underground

Meanwhile, at the bottom of Lake Michigan

Who, or what,
built the mysterious Mima Mounds? - Secrets of the Underground

Who, or what, built the mysterious Mima Mounds?

I'll use a magnetometer
to see inside the snake. - Secrets of the Underground

I'll use a magnetometer to see inside the snake.

What caused a 47-acre mountain lake
to suddenly disappear? - Secrets of the Underground

What caused a 47-acre mountain lake to suddenly disappear?

Now, an advanced scanning process
will turn them inside out, - Secrets of the Underground

Now, an advanced scanning process will turn them inside out,

Hidden just below
the Earth's surface, - Secrets of the Underground

Hidden just below the Earth's surface,

3-D photogrammetry
could uncover new clues - Secrets of the Underground

3-D photogrammetry could uncover new clues

And today, we finally have
the tools to unlock them. - Secrets of the Underground

And today, we finally have the tools to unlock them.

Hidden just below
the earth's surface, - Secrets of the Underground

Hidden just below the earth's surface,

Hidden just below
the Earth's surface, - Secrets of the Underground

Hidden just below the Earth's surface,

Hidden just below
the Earth's surface, - Secrets of the Underground

Hidden just below the Earth's surface,

And today, we finally have the tools
to unlock them. - Secrets of the Underground

And today, we finally have the tools to unlock them.

I'm Rob Nelson, a scientist
using state-of-the-art technology - Secrets of the Underground

I'm Rob Nelson, a scientist using state-of-the-art tech...

And today, we finally
have the tools to unlock them. - Secrets of the Underground

And today, we finally have the tools to unlock them.

..and today, we finally have
the tools to unlock them. - Secrets of the Underground

..and today, we finally have the tools to unlock them.

Look at that!
Whoa! I think this is it! - Secrets of the Underground

Look at that! Whoa! I think this is it!

I'm Rob Nelson, a scientist
using state of the art technology - Secrets of the Underground

I'm Rob Nelson, a scientist using state of the art tech...

I'm Rob Nelson, a scientist using
state-of-the-art technology - Secrets of the Underground

I'm Rob Nelson, a scientist using state-of-the-art tech...

I'm Rob Nelson, a scientist
using state-of-the-art technology - Secrets of the Underground

I'm Rob Nelson, a scientist using state-of-the-art tech...

These are
the Secrets of the Underground. - Secrets of the Underground

These are the Secrets of the Underground.

I'm in Denver, Colorado,
America's fastest-growing major city, - Secrets of the Underground

I'm in Denver, Colorado, America's fastest-growing...

These are
the Secrets of the Underground. - Secrets of the Underground

These are the Secrets of the Underground.

But some believe
this idyllic metropolis - Secrets of the Underground

But some believe this idyllic metropolis

Louisville, Kentucky,
known for its bourbon, - Secrets of the Underground

Louisville, Kentucky, known for its bourbon,

Alcatraz, one of
the world's most notorious prisons. - Secrets of the Underground

Alcatraz, one of the world's most notorious prisons.

In Chester County, Pennsylvania,
20 miles west of Philadelphia, - Secrets of the Underground

In Chester County, Pennsylvania, 20 miles west of Philadelph...

There are claims that
hidden deep under the city - Secrets of the Underground

There are claims that hidden deep under the city

Built on a 22-acre island surrounded
by the frigid San Francisco Bay, - Secrets of the Underground

Built on a 22-acre island surrounded by the frigid San Franc...

But this southern jewel
of the blue grass state - Secrets of the Underground

But this southern jewel of the blue grass state

And rumours have swirled about
the existence of tunnel entrances - Secrets of the Underground

And rumours have swirled about the existence of tunnel entra...

This birthplace
of America's only native whiskey - Secrets of the Underground

This birthplace of America's only native whiskey

According to locals, this area
is the site of a mass grave. - Secrets of the Underground

According to locals, this area is the site of a mass grave.

Under the airport, - Secrets of the Underground

Under the airport,

The final resting place
of dozens of Irish immigrants - Secrets of the Underground

The final resting place of dozens of Irish immigrants

Its location and design
made it almost impossible
for inmates to escape, - Secrets of the Underground

Its location and design made it almost impossible for inmate...

Yet for nearly a decade,
he conducted his illicit booze trade - Secrets of the Underground

Yet for nearly a decade, he conducted his illicit booze trad...

Conspiracy theorists have made
wild assertions that these tunnels - Secrets of the Underground

Conspiracy theorists have made wild assertions that these tu...

Over the decades, there were
at least 14 separate escape attempts - Secrets of the Underground

Over the decades, there were at least 14 separate escape att...

Whenever one of his preferred
hangouts was raided, - Secrets of the Underground

Whenever one of his preferred hangouts was raided,

Were they innocent victims
of disease, - Secrets of the Underground

Were they innocent victims of disease,

Witnesses claimed he'd be there
one minute, - Secrets of the Underground

Witnesses claimed he'd be there one minute,

I'm not sure I buy into these claims, - Secrets of the Underground

I'm not sure I buy into these claims,

Many had heard about
a legendary network of tunnels - Secrets of the Underground

Many had heard about a legendary network of tunnels

So how did Capone continue his
illegal operation for over a decade - Secrets of the Underground

So how did Capone continue his illegal operation for over a ...

With the latest
hi-tech imaging tools, - Secrets of the Underground

With the latest hi-tech imaging tools,

So I'm going to
use cutting-edge technology - Secrets of the Underground

So I'm going to use cutting-edge technology

In 1944, he was working
a detail in the kitchen - Secrets of the Underground

In 1944, he was working a detail in the kitchen

Legend says the answer may lie
underneath the city of Louisville. - Secrets of the Underground

Legend says the answer may lie underneath the city of Louisv...

There is rumoured to be a secret
network of tunnels - Secrets of the Underground

There is rumoured to be a secret network of tunnels

The first stop in
my investigation, the airport, - Secrets of the Underground

The first stop in my investigation, the airport,

Today, the only remembrance of the
victims here is a memorial stone wall - Secrets of the Underground

Today, the only remembrance of the victims here is a memoria...

He spent hours trying to break
through before he was busted. - Secrets of the Underground

He spent hours trying to break through before he was busted.

The existence of these tunnels
has never been confirmed, - Secrets of the Underground

The existence of these tunnels has never been confirmed,

I'm exploring the idea
of a tunnel network, - Secrets of the Underground

I'm exploring the idea of a tunnel network,

This is where I'm meeting
local history professor Bill Watson - Secrets of the Underground

This is where I'm meeting local history professor Bill ...

During Prohibition,
the underground network - Secrets of the Underground

During Prohibition, the underground network

Is that true? Yes, and it's actually
used to carry bags back and forth. - Secrets of the Underground

Is that true? Yes, and it's actually used to carry bags...

The question is, do
these rumoured tunnels really exist? - Secrets of the Underground

The question is, do these rumoured tunnels really exist?

But that hasn't stopped people
from saying it's for other reasons,
conspiracy reasons, - Secrets of the Underground

But that hasn't stopped people from saying it's fo...

What evidence do we have
of a mass gravesite? - Secrets of the Underground

What evidence do we have of a mass gravesite?

Well, for years,
it was just folklore, - Secrets of the Underground

Well, for years, it was just folklore,

And if so, could Capone have accessed
them to escape authorities - Secrets of the Underground

And if so, could Capone have accessed them to escape authori...

I read that there's just a ton
focused here on the airport. - Secrets of the Underground

I read that there's just a ton focused here on the airp...

As a local Irishman, Bill was
always interested in this story. - Secrets of the Underground

As a local Irishman, Bill was always interested in this stor...

To find out,
I'm heading there myself, - Secrets of the Underground

To find out, I'm heading there myself,

Yeah, you know, whether it's aliens - Secrets of the Underground

Yeah, you know, whether it's aliens

My investigation starts
at Big Al's favourite poker spot - Secrets of the Underground

My investigation starts at Big Al's favourite poker spo...

But in 2002, his fascination
took a very personal turn - Secrets of the Underground

But in 2002, his fascination took a very personal turn

In recent years, ground penetrating
radar, or GPR for short, - Secrets of the Underground

In recent years, ground penetrating radar, or GPR for short,

Opened in 1905, this downtown
hot spot's old world grandeur - Secrets of the Underground

Opened in 1905, this downtown hot spot's old world gran...

Is it possible to get down there
and look at the tunnels - Secrets of the Underground

Is it possible to get down there and look at the tunnels

This is
the Pennsylvania Railroad file - Secrets of the Underground

This is the Pennsylvania Railroad file

At the end of the day, this is
a major international airport - Secrets of the Underground

At the end of the day, this is a major international airport

Secrets of the Underground poster

★ ★ ★ ★ ★

Using cutting-edge technologies such as ground penetrating radar (GPR), LIDAR (Light Detection and Ranging), and 3-D imaging, scientists research fascinating underworlds of secret tunnel networks, ancient structures, and bizarre g...

User Rating: 0.0 (0 ratings)

Director: N/A

Writer: N/A

Production:

Genre: documentary

Year: 2017

MetaScore: N/A/100

ImdbRating: 6.4

BoxOffice:

Released: 11 Feb 2017

Awards: N/A

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