An alley covered with 20 years of bubble gum.

A deserted hodgepodge of experimental structures designed by nearby university students.

A hotel and restaurant serving as the mecca of kitsch.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

A historic neighborhood church is reborn as a psychedelic arts collective.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

The rogue roots are gradually consuming some of the historic marble grave markers.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

Famously misunderstood wonder of the ancient world

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

A multimedia experience that chronicles the atrocities of racism.

The unbelievably opulent home built for an infamous newspaperman.

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

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Towering basalt columns, a creation of fire and ice.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

The world's largest Holstein cow.

A true roadside icon standing on the same plains that the herds once roamed.