Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

Legends surround an ancient tree trunk riddled with nails for good luck.

A silly medieval mural preserved on the side of a Viennese house.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

This museum promotes informed contraception by documenting its often secret past.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

Op-art architecture designed for happiness.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

A spherical "micro-nation" in the heart of Vienna.

The topiary maze at the Habsburg hunting lodge.

The beautiful baroque library of the Hapsburg empire.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Macabre museum devoted to historical Viennese murders.

These plaques found across Warsaw commemorate the sites where executions or battles took place during the German occupation.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

After years of being casually peed on by humans, this tree is peeing back.

A waterfall runs right through the middle of this Taiwanese shrine to the hundreds of workers killed while building a nearby highway.

This Taiwanese promontory is covered in otherworldly hoodoo formations.

Looking for a crappy restaurant? Pull up a porcelain bowl and enjoy your meal.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.