London's smallest police station is barely the size of a phone booth.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

The most visited, and possibly most controversial, museum in Germany.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A fascinating insight into daily life in the Eastern Bloc.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

This Australian beach became famous when Prime Minister Harold Holt disappeared from its shores.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

These fantastically named natural pools look like something out of a Scottish myth.

Dramatic river bend surrounds a natural red-rocked pedestal.

An enormous, inside-out glass globe built in 1935.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

On Japan's Tashirojima Island, cats are king.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An emerald-green grotto just a short trip from Austin.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.