Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Striking occult iconography on a medieval German church.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

A giant toy jack made of numerous welded-together fire hydrants.

The Laureates here get something even more coveted than a Nobel Prize: free parking for life.

The Vermont grave of a 4,000-year-old mummy prince.

A massive volcanic plug is now a protected area that hosts a number of bird species.

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

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

This little museum is built on a theater that was once a wildly elaborate speakeasy.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Hiroshima survivor on Riverside Drive.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Spiral labyrinth hidden in the hills above Oakland, CA.

California's most comprehensive horticultural library.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Russian history in San Francisco.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

A hidden world of exotic succulents and cacti.