The only arched bridge made of stone on the entire Mississippi River.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

One of the coolest murals in Minneapolis.

This enormous sports car themed amusement park is home to the world’s fastest roller coaster.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

This artificial archipelago was supposed to resemble a map of the world.

Whitewashed mosque contains the world's largest carpet.

This indoor ski resort has a mountain contained inside a mall.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

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

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

The fairy tale castle of the "fairy-tale king."

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Medicinal spa created with the discharge from a geothermal energy plant.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

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

Longest fortress system anywhere in Europe.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

European castle ruins in an American state park are actually the product of death and grief.