The largest fountain in Bratislava.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

A Hungarian pharmacy museum with a box full of mummy powder.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Museum dedicated to the terror regimes of Hungary.

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.

Massive galleon from a box-office bomb docked in Genoa.

This cathedral hides a sculpted dog that determines your fate and an unexploded shell from World War II.

Genoa's collection of over 4 million zoological, botanical, and geological specimens from around the world.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

This almost-forgotten underground dungeon housed several convicts over the years, including Caravaggio.

A centuries-old forgotten underworld lies beneath Malta.

Abandoned Roman Catholic chapel abused by Satanists before being restored.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

The eclectic seaside sanctuary caters to a rather fowl crowd.

This unique building in the main square stands out among the city's typically Baroque architecture.

These lesser-known Maltese catacombs date back over 1,700 years.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."