When flour explodes, it's not a pretty sight.

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

20,000 pieces in a Frank Gehry-designed building.

A 115-year-old restored German dining hall awaits those who venture beneath the Minnesota State Capitol.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

These curious caverns have been home to mushrooms, gangsters, and disco.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

A magnificent church designed by world-renowned architect, Frank Lloyd Wright.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

The state bird of New Mexico, constructed entirely out of garbage.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

A modernist landscape of water and sci-fi concrete.

The unusual burial monument of Arizona's first governor.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Large but largely ignored, these 42 life-size Liberty Bell replicas were a peculiar, unexplained feature on the facade of a Macy's department store.

A long-vacant Scottish Rite temple in Hollywood has been converted into an art museum filled with Masonic relics.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

The permanent home of a 1960s traveling museum of tiny historical dioramas.

100 year tradition of fist fights, marked by marble footsteps.

A little sculpture with a large wardrobe.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.