The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.

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

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

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

One of the greatest collections of coins in the world is housed in the former mansion of an archeological pioneer.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

An ancient octagonal weather station named for the eight Greek gods of wind.

This coffee shop lies hidden beneath a historic church.

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

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

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

Designed to celebrate the queen's 40th birthday.

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

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

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

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.

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

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

Named after a lodging site that existed nearby, a bridge has existed at this location since 1455.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.