The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Ride the subways of yesteryear.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

An homage to everyone's favorite prehistoric cartoon family.

Where the lovelorn find a home for their sentimental keepsakes.

Mound of stones marking the burial site of the world's most famous orca.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

Hollowed out cedar log tubs set in an ancient towering forest.

One of the deepest indoor swimming pools in the world.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

A place to eat for on-the-run agents and espionage enthusiasts.

Soaring over the Niagara Whirlpool since 1916.

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

An icon among Florida's pre-Disney tourist attractions.

A small Portuguese cottage formed between boulders in the countryside.

Spiral alpine structure provides an alternative experience of viewing the Matterhorn.

A mysterious castle built as a monument to lost love.

Putt your way around Australia in a black light environment.

A living art gallery painted on a canvas of Monterey pine trees.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

Shop selling 500 flavors of soda has something for everyone.