A statue of an astronomer gazes at the sky as a tribute to Caroline Herschel.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

Gardens representing parts of Asia, Europe, and the Mid East are tucked away among the Soviet-style buildings in East Berlin.

Carved between 3500 and 1000 B.C., the distinctive carvings at this site are poorly understood.

On a corner of the Ardmeanach peninsula on the Isle of Mull, a 50 million-year-old fossil tree hides in the coastal cliffs.

The long-lost final resting place of an accused witch.

Designed to allow funerals to proceed over the River Dulnain.

Named for its similarity to the tip of a violin's bow, this striking formation was created by millions of years of erosion.

Scotland is filled with standing stones that date back hundreds or thousands of years. This is not one of them.

The half-finished remains of what would have been Scotland’s biggest piece of landscape art.

The untimely death of a dignitary's daughter led to this fort being abandoned before it was ever finished.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

A site of pagan worship which still attracts people looking for fairies.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

Walk through Czech history in Prague's largest graveyard.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

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

Believed to be the smallest castle in Europe.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

A red-brick beacon stands against the tempestuous Atlantic, on the windiest site in the United Kingdom.

Wonderfully preserved Victorian factory, complete with a preserved steam powered engine house.