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

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

The largest wine cellar in the world is a 150-mile network of underground caves near the capital of Moldova.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

The oldest known university in the world is in Fez, Morocco.

Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

A fortified city, home to a remaining population of five families

The other side is actually green.

Mosaics, storks, and brothels—this ancient city has it all.

One of the most spectacular canyons in the world.

Founded as a refugee camp, now a popular tourist spot.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

An alien church provides much needed silence in the midst of a Finland shopping center.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

The curios of pharmacist and collector Henry Wellcome.

Melbourne's favorite bronze dog.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

One of the oldest theaters in Australia, it's also said to be haunted by a performer who died on stage.

Every hour a secret compartment drops from this giant pocket watch, revealing a lovely surprise.