This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

Largest lake in Great Britain measured by surface area.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

The heads of two giant mythological water horses honor Scotland's horselord past.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.

A surreal statue honoring Prague's favorite literary son.

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Historic medieval fortified city in southwest France.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A village on the east coast of England that has almost completely eroded into the North Sea.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

This subterranean necropolis holds three floors of antler-dug grave caves.

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

A fortified city, home to a remaining population of five families