This giant green head remembers one of America's jazz giants.

A miniature city built by a single hunchbacked monk.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

Once one of the largest producers of pig iron in the world.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

A natural history museum with an extensive collection of bird dioramas.

A strange history museum, with items accumulated by a pair of globe trotting spies.

What better place to take a seat?

The language and heritage of a nearly forgotten culture can still be explored in this Southern enclave.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

Ancient catacombs form the foundation for this Rococo orgy of a church.

Elaborate tile work in this railway station tells the story of Portugal.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

An ancient Egyptian temple in the middle of Madrid, Spain.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

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

Where commuters walk through remnants of an ancient Greek necropolis.

A two thousand year old brothel uncovered in Northern Greece.

This architecturally eclectic early-20th century mosque was built as a place of worship for the Islamic followers of a Jewish messiah.

What happens when you cross a mayor and a painter?