One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

A monument celebrating the idea of reaching inaccessible places.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

A hidden beach at the end of a tunnel of mangrove trees.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

A mysterious castle built as a monument to lost love.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A display of magnificent stained glass windows is the first exhibit of its kind.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

This glamorous old building is said to have inspired the Tower of Terror.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

World-famous, Pink's still manages to keep its prized cult fetish status.

Resting place of Hollywood's immortals is also site of summer film screenings.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Huge abstract sculptures of the Puerto Rican Flag.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

To find the "unicorns of the deep" you've got to go downstairs.

Illegal drag racing two stories beneath Chicago’s streets.