At the center of an island in the middle of the Indian Ocean is a deep chasm ringed by tall waterfalls.

These giant volcano sponges in Antarctica are thought to be the world's oldest living animal, at 15,000 years old.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

The White House Situation Room was taken apart in 2006 and shipped to the Ronald Reagan Presidential Library.

This crumbling 14th century chapel became so unstable the roofing apparently collapsed during a wedding ceremony, narrowly missing the curate's head.

The giant Siberian crater known locally as the "doorway to the underworld" is expanding every year.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

A distillery built on (and above!) mobster Dutch Schultz's Prohibition-era underground moonshine business.

A Catholicism-themed restaurant where sacrilege is on the menu.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

This art center is way beyond your average pumpkin-carving operation.

To honor his gardening wife, this yard artist turns bowling balls into playful, colorful sculptures.

A fairy garden in an old hotel hidden in La Marquesa forest.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

This narrow shop in the East Village hosts a matchmaking service for the new millennium.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

One family's mission to exemplify sustainability took on a whole new life as a surprisingly beautiful home.

Modern design and unusual architecture make this mountaintop temple no ordinary Buddhist retreat.

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

Colorful umbrella-covered trees in Singapore's Little India look straight out of Dr. Seuss.

One of the oldest anatomical theaters in the U.S. still in use was once the site of an infamous cadaver riot.

This Italian ski resort rose to fame when Benito Mussolini was held prisoner there and then rescued by the SS.

A collection of more than 1,000 teddies from nearly any profession.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.