The only residents of this abandoned housing development full of identical castles are stray cats and dogs.

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

Shop for books in the New Orleans house where William Faulkner once lived.

This 12-seat movie theater is the smallest in the world.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This risqué sculpture, based on a Hans Christian Andersen fairy tale, caused outrage 35 years after it was erected.

One person's lost luggage is another person's treasure.

Paris' linguistic guide to the international language of, yes, love.

The oldest arboretum on the Dalmatian coast doubles as the gardens of Kings Landing in "Game of Thrones."

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

You may recognize this beautiful grove within Kaitoke Regional Park as location of the house of Elrond.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

Try not to get slimed in Tribeca.

The world's first and only escalator for lazy bicycles and their daunted riders.

Six beautiful wooden giants are hidden around Copenhagen.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

The traveling wares of Denmark's most famous author.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

This contemplative sculpture made out of old machine parts is meant to be the first in a series of sculptures around the world.