People can't get enough of these adorable Japanese photobooths.

This grim museum collects artifacts and evidence of some of the most sensational antipodean crimes.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

Come for the flowers, stay for the bats!

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

A Museum of Psychiatry in a still-operating mental institution.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

A floating cat sanctuary on an Amsterdam canal.

A public urinal so pretty, it was declared a national monument.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

Fantastic views and thousands of love locks.

This massive subterranean fissure is known as the "underground Grand Canyon."

This one-time health resort was used by aristocrats around the world.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

Jesus' footprints and the first catacombs in the world.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome's semi-secret peephole vista is also a former Crusader stronghold.