One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

An old bank vault in Atlanta is now the eternal shrine to the King of Rock and Roll.

One of the world’s largest collections of paper memorabilia chronicles 4,000 years of papermaking.

"X" marks the spot of an echo chamber in the middle of a plaza.

The world's first time capsule lies behind a welded steel door in Atlanta.

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.