Art historians have debated the identity of this medieval stone rider since the 19th century.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

An engineering wonder at Pillnitz Castle protects a precious 230-year-old flowering shrub.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

How did a French journalist’s grave become the sexiest statue in the cemetery?

Located more than 600 feet beneath the North Atlantic seabed, this tunnel boasts the world's first undersea roundabout.

A trash dump made beautiful by nature's power.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

A hotel and restaurant serving as the mecca of kitsch.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

A German artist built a home and garden filled with whimsical art pieces, like a massive, operational volcano.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

Peace Park and the Atomic Bomb Dome.

An eerie reminder to the horrors of World War II.

Once a black market electronics marketplace, now an otaku shopper's paradise.

A 20-meter (65-foot) robot towers over Tokyo Bay.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

Not quite the menace it once was, this monster still has some chops.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."