The "Prussian Versailles" that is as glorious today as when it was built.

Designed to resemble foreign architecture, this mosque-looking structure was used to pump water to a royal fountain.

A quaint Russian village in the middle of a German metropolis.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

These stairs feature the names of Zemun's most famous faces.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

A pair of connected skyscrapers form this symbolic gateway.

A tribute to a man who defied the Nazis until his last breath.

Cozy basement bar sports an inventory of over 2,000 beers.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

A little sculpture with a large wardrobe.

A bronze statue of the fictional character nicknamed "Mrs. Hat" from a beloved Belgian comedy.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

A huge old mansion full of thousands of toys, each there to be used and played with.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

A lovely biographical museum in the artist's home of 24 years.

At less than four inches in height, this iconic fictional character is the smallest public statue in all of Moldova.

This abandoned Soviet circus is slowly being restored to its Communist-era glory.

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

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

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

Romania's triumphal arch looks out over Bucharest.

This massive underground salt mine now holds a sci-fi theme park in its depths.