Cavernous opening completely encased in Karst limestone.

Thousands of Haitians travel to the waterfalls to ask the Virgin Mary of Mount Carmel and her voodoo counterpart Erzulie for healing in a yearly pilgrimage.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

Send a postcard while vacationing with Satan.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

A safe place for the wild donkeys of a hot vacation destination.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Former villa and estate of James Deering developed to preserve native tropical forests.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

Where monkeys run wild and the humans are caged.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

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

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

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

This failed condo development was reborn as a street art hub.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A bit of retro transportation flair preserved in the world's largest department store.

Slyly buy a shake in the Parker Meridien lobby.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.