The last manually operated turntable ferry in the world.

One of the most iconic neon ads of former East Germany.

This sculpture garden is a serene oasis wedged in the middle of a busy highway.

This ancient goddess temple inspired the design of India’s Parliament House.

A spectacular rainbow of stained glass makes the "Pink Mosque" one of the most beautiful in Iran.

The world's largest sticker ball weighs in at a mighty 231 pounds.

Iconic red and white plaques show the creative names invented to navigate the city streets.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

An early work of the architect Álvaro Siza Vieira, these swimming pools blend into the beach.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Monument to the area's potato and lamb industries.

There's nothing shrimpy about the world's largest artificial prawn.

A wonder of natural limestone formations etched by millions of years of natural interaction between rainfall and rock and air.

Giant fruit signaling the entrance to a tropical paradise.

The only pollutant in the clear blue water is sunscreen.

A huge stone pyramid built for fun.

A giant Australian fruit and tropical farm.

This abandoned railroad tunnel is now home to a micro-colony of bats and a ghost train.

The abandoned ruins of a beautiful medieval castle just outside Barcelona.

There's a labyrinth of medieval chambers hidden deep below a 15th-century pub.

A golden egg-shaped sauna in the Arctic tundra.

Because sometimes you need to make a batch of frites even when the stores are all closed.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

A 32-acre fun park dedicated to all things cheese.