An abandoned munitions factory with a shot tower continues to wage war on the surrounding environment.

A castle built by an eccentric medieval enthusiast in rural Ohio.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

The largest earthwork effigy in the world.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

A real flying saucer, contracted by the U.S. Air Force.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

A tiny monument to the classic American candy.

The largest open-air contemporary art center in Latin America is a unique experience in the Atlantic Forest.

To honor his gardening wife, this yard artist turns bowling balls into playful, colorful sculptures.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

The narrowest house in America is seven feet of pure spite.

Seattle's own bad art museum located inside Cafe Racer.

Old submarine parts have been converted into faux whale fins.

One artist's yard is full of shining, whirling kinetic sculptures that look like pure steel psychedelia.

Millions of dollars worth of sculpture decorate this Iowa city center.

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

The world's largest fire hydrant is supposedly tornado-proof.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

In one Santa Monica parking lot a mushroom cloud made of chains heralds a message of peace.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.