Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

Walk through Czech history in Prague's largest graveyard.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

An existential riddle in the world's largest ancient castle.

A saintly relic hidden in a Prague church basement.

Steadily reminding Czechia of its past.

The hidden lair of an alchemist rediscovered in a 2002 flood.

A surreal statue honoring Prague's favorite literary son.

Looming communist pillar with a Czech twist.

The oldest garden in Prague, once part of an medieval orchard.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

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

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

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

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

Macabre astrological automaton clock dating to the late 1400s.