A rocky Irish outcropping with a history of wealth, conflict, and ruin.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Vast stretch of tide-pools with a unique Moroccan charm.

This otherworldly French waterfall looks like its waters have turned to stone.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The final resting place of the poets Shelley and Keats.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Metro station with a claim to rock n' roll fame.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The fairy tale castle of the "fairy-tale king."

The prototype for all Nazi concentration camps.

This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

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.

Monument to a suicide protesting the Soviet invasion.

Looming communist pillar with a Czech twist.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

The world's largest model of our planetary system.

Sweden's "good old days" painstakingly re-created in a model village.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

A marvel of Byzantine engineering under the streets of Istanbul.