Explore 10 acres of environmental sculptures.

This whimsical stacked cabin looks like something out of a children's book.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

One of the world's tallest statues is also one of its most hated.

A regular looking rock with an unbelievable history.

The medieval network of canals hidden underneath the city is opened to explorers each year.

Seattle's super-sized cowboy apparel once belonged to a themed gas station that wrangled in herds of tourists.

Walking by this fence is like strolling along a portal to various fictional worlds.

The house that took a plunge into the facade of a museum.

A silly medieval mural preserved on the side of a Viennese house.

An archaeological treasure trove towers over the valley of Chiavenna.

A massive mausoleum towers over the gravestones in a 19th-century Italian "model village."

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

This half-finished "city of toys" was almost Italy's own Las Vegas.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

A former squatter's paradise outside Prague.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

From this desk Al Hirschfeld drew his influential caricatures of the 20th century's Broadway stars.

Gorgeous views of Italian mountains and valleys form the backdrop of this unique open-air theater.