Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

With over 10,000 lights, this engineering marvel lights up the city after dark.

A museum glorifying the life of Stalin, located in the city of his birth.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

The decaying remains of a once-luxurious Soviet spa town.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Krakow's own version of the Hollywood Walk of Fame.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

The silly symbol for an underground protest group is now scattered around the city.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A statue honors the children who fought Nazis in Poland.

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

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

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

An underground city of salt.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

A diminutive statue that was inspired by the sculptor's own daughter.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.