Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Experience what life was like in Ireland during the Viking and medieval ages.

Ancient ruins hidden underneath a modern luxury hotel.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

This network of narrow, medieval passages has the most delightful name.

This once architecturally advanced housing complex is now a haven for squatters that still bears the scars of war.

Built by the Ancient Greeks, this chariot bridge is still in use today.

This striking sculpture of Icarus honors Greece's fallen flyers.

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

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

Explore Hull's historic Old Town by following the sea creatures scattered throughout its charmingly cobbled streets.

This mummified mermaid corpse is an aquatic curio that was eventually revealed to be a fake.

Overlooking the harbor is a beautiful neglected mansion guarded by two Egyptian sphinxes.

There are many Byzantine-era churches still standing in Athens, but this is the only one with a 2,500-year-old column rising through its roof.

The modern birthplace of Irish freedom.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

What once sat in the world’s spotlight is today a largely disused ghost complex.

The historic tower houses of this nearly abandoned Greek town have been compared to the spikes on an iguana's back.

This legendary city has been a tourist attraction for centuries.

The only surviving choragic monument is a trophy awarded in 334 BC for the winning dramatic chorus.

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

The ruined doorway is a portal to the building's turbulent and torturous past.

Eighty million natural history specimens call this gargantuan museum home.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.