This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

Here be dragons.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

These small stands sell Malian snacks to worshippers and passersby after Friday prayers in Harlem.

A small graveyard is hidden in the midst of a bustling university campus.

An unassuming stone building houses New York City's oldest seismic station almost 30 feet below the Bronx.

New York City's only radical feminist independent bookstore.

The flagship building of an early national restaurant chain is a superb example of terra cotta art.

The world-record holder for the longest bridge stretching continuously over water.

A former fortified tower now houses a collection of classic communications equipment.

Nikola Tesla's former home contains an homage hidden from plain sight.

Where the legendary Orson Welles got his theatrical start before "Citizen Kane."

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

Legend says a primate-like cryptid prowls this otherworldy sliver of the Louisiana bayou.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A hidden architectural treasure in New York's Brooklyn.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.