An abstract monument to a symphonic composer.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A subterranean house of worship carved right out of the bedrock.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

An alien church provides much needed silence in the midst of a Finland shopping center.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

This graffitied 19th-century building was a prototype of European industrial architecture.

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

Legend says this sacred tree was a gift from goddess Athena.

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

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

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

This grand hydraulic installation has provided water for townspeople since the Middle Ages.

An ancient burial ground believed to have been used for ritual sacrifice.

The largest salt lake in the Sahara is mysteriously alluring.

An ancient Phoenician citadel once stood at the site where Queen Dido first landed, according to legend.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

After 400 years of being closed to the public, this monastery's underground tunnels and secret garden are now a museum.

This garage is frozen in the late 1990s, full of rare and untouched cars and motorcycles.

Dynastic Home of the De Piro Family.

This church is named for one of the most dramatic tales in the early Christian church.