These small, brass stones commemorate the first Roma victims of the Holocaust.

A cheeky architectural easter egg.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

Once home to artillery, this garden offers more peace today than it did during its war-torn past.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

A cheeky reminder about the value of art dangles above one of Olomouc's busiest streets.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

Be(w)ar(e) the moat around this historic Czech castle.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

A spiral staircase twists to the top of this unusual Czech lookout tower.

A giant interactive periodic table with real samples of the elements.

Two stunning 17th-century libraries and a cabinet of curiosities.

Two giant painted cooling towers make for one of the world’s most epic bungee jumps.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

Brasilia's oldest newsstand is sheltered by a wish-granting tunnel-tree.

The house that took a plunge into the facade of a museum.

This outsider art house has gone from clinical creation to astounding artwork.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

The world's largest collection of intentionally useless inventions.

Museum devoted to the artificial language of Esperanto.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

The underground sanctuary of a mysterious ancient Roman religious cult contains an exquisite traditional fresco.

This community on a small Venetian island has taken to painting their houses in bright neon hues.