A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

A sharp sculpture made of thousands of pieces of jagged glass.

The bronze uniforms commemorate the vital role of women during World War II.

The final resting place to 300 Victorian-era pets hides inside the city park.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

An ornate doorway leads to the former site of one of the city's oldest society of merchants.

Designed to celebrate the queen's 40th birthday.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

This Grade II Listed Building with an Art Nouveau façade once contained a unique print shop.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

Recently restored menagerie of Victorian-era beasts.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

The castle still holds traces of the abandoned Roman fort it was built atop.

A unique sculpture cemetery dedicated to the region's defunct businesses.

Norway's oldest cathedral still in use.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

An impressive museum dedicated to the resource that made the Scandinavian country rich.

This skewed English house has looked like it's going to fall over for centuries.

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

One of England's most famous churches hides a pair of little known architectural treasures.