This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The kitsch mansion of the former Romanian president Nicolae Ceaușescu features a golden bathroom.

This sculpture used famed boxer Joe Louis as the inspiration behind its body.

This once-derelict building is now one of the most beautiful bookstores in the world.

A medieval, mosaic-lined baptistry built by a heretical Christian sect.

A historic cavernous cistern lies hidden behind a wall at San Marino’s stamp and coin museum.

The San Marino-Rimini railroad was short-lived but this tunnel once provided shelter for hundreds of refugees during World War II.

Breathtaking and huge 430 year old maps of Italy.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

This indoor ski resort has a mountain contained inside a mall.

This pink tractor statue pays tribute to a legendary underground punk band.

A Baroque mansion with ties to legendary magicians and alchemists.

This 11th-century castle sits so low you can't see it behind the surrounding buildings.

A statue of Schiedam's beloved gin mascot.

Wind power station for making famous Ketel One vodka.

Some believe that the artist behind this whimsical statue inserted his own likeness as a way to discreetly flip the bird.

Luxembourg's most popular statue since 1923 has been missing for... 26 years!

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

A piece of the front end of a British cruiser that was used as a block ship in World War I.

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

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

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Amsterdam's former hotspot for public executions and dissections.