Palace where the nearly un-killable Rasputin was murdered.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

Gargantuan home of Russian science.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Moscow's imposing monument to the Space Age.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A fake Transylvanian castle houses a cathedral of antlers.

This man-made mound monument was built out of soil from all across the Polish empire.

Real bones which are said to have belonged to a Polish dragon.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

An underground city of salt.