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

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

A Byzantine-era church hidden in a wooded area below the Acropolis.

These caves secretly held national treasures during World War II.

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

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

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

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Alongside this Memphis trail are several sculptures that show trail-goers how to relax.

This ranch house in Jackson's Elraine neighborhood was home to the civil rights icons and the site of a shocking assassination.

Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

This Greek Orthodox church houses the mummified body of St. Spyridon.

Where commuters walk through remnants of an ancient Greek necropolis.

This striking, historic hotel has major Wes Anderson movie energy.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

Decorated with a staggering 1,380 ladybugs, the installation has turned what was once a grim, forgotten nickel mine into a landmark and a statement.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

Gigantic water vessel, permanently grounded in Southern Albania.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

Metal horses galloping through a London fountain provide a link to the city's past.

An architectural oddity hides in plain sight on this iconic London bridge.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.