Canyon walls shrouded in ferns.

A chance to sleep among the firs and pines of the Oregon forest.

This Cold War missile launch site has been abandoned for 40 years.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

This Virginia town has been famous for its fried chicken since the 19th century.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Some islands... they come, they go, especially on Lake Travis.

Turning night into day in Victorian-era Austin to thwart a serial killer.

A view-altering observatory at the University of Texas.

A grove of colossal man-made flowers built to collect the sun's rays.

A gorgeous gilded tower houses what may be the world's largest collection of gin.

A series of labyrinths in the Nevada desert inspire meditation and calmness.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

An enormous, inside-out glass globe built in 1935.

Remnants of a forgotten 1920s speakeasy and Prohibition-era murals were discovered in its basement.