San Diego's most historic and haunted home.

The world's first commercial spaceport is a disappointment of cosmic proportions.

This quirky hot springs town known to locals as "T or C" was named after a radio show.

This is one really big nut.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

"I did this all while you were watching TV."

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

This statue inspired by Renoir's famous painting embodies the jovial spirit of Key West.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A museum dedicated to the alleged Roswell Incident.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The obelisk meant to mark the founding father's grave at Monticello is actually on the University of Missouri campus.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.