An encyclopedic collection of mammal penises.

The world's largest occupied bat houses hold hundreds of thousands of flying mammals.

For one month, the fields and skies of Gibbon, Nebraska, come alive with one of the largest gatherings of sandhill cranes in North America.

The only boathouse Frank Lloyd Wright ever designed was also the only unbuilt structure in his famous Wasmuth Portfolio, until 2007.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Eulogizing an unknown man's unusual demise.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

An exotic wildlife habitat right off The Strip.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

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

In a New Jersey cemetery, the final resting place of two brothers who fell victim to a deadly mushroom.

This moving cemetery sphere is a slowly rolling stone.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.

The site of the notorious Camp Sumter Prison is now a peaceful memorial.

This mass grave for victims of a massive hurricane remained hidden until 1991.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

Stairs often replace streets on the steep slopes of this old mining town.

A fire lookout atop a glacial pinnacle is reached by climbing three vertiginous flights of stairs.

Shaped like a big top tent, this memorial honors the victims of a terrible train wreck.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

A melancholy guardian doubles as a judicious godmother to this small town cemetery.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.