2300-year-old Roman road connecting the empire.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An alchemist's "magic door" stands in the middle of a Roman park.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This series of underground chambers contains Europe's largest subterranean lake that is slowly drained each day.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Where beer lovers can literally immerse themselves in beer.

The resting place for anonymous victims of the Danube's dark waters.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

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

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

In an area known in Bratislava’s postal history, this sculpture sits equipped with a functional postbox.

Too much gossip or just missing curfew could land you in here for a couple of days.

An unusual cave filled with rare alien-looking aragonite formations.

A sculpture of the beloved author surrounded by characters from his fairy tales.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

Inside the Šomoška National Nature Reserve exists a unique rock formation rarely seen in the world.

A unique hotel for the artistic soul.