Spitfire airplanes with butterfly wings hover over Prague’s skyline.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The Guardian of Tallinn.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

The first monument in Estonia that was made by an Estonian sculptor.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Retirement home for giant obsolete machines.

There has been an astronomical clock on this spot since the 14th century.

This ferry carries passengers across the Rhine propelled by no engine or paddles but by the river's current.

A futuristic rocket marks the spot where three borders meet.

Breathtaking and huge 430 year old maps of Italy.

These spartan apartments are provided to clergymen visiting Vatican City.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

At more than 5,000 years old, these structures are among the oldest free-standing stone buildings in the world.

People have been making salt here using traditional methods for centuries.

Spectacular secluded inlet with clear waters flanked by limestone cliffs.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A second generation sun-powered marvel lights up the night.

Experience a charming 1930s version of "infotainment."

These markers are used to document elevation changes around the famed dam.