This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The angel of death appears to weep black tears at this grave marker.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

This sprawling, formerly elite sporting complex in Amman, Jordan has become a local picnic spot.

Hawaii’s largest cemetery rests inside an extinct volcano crater.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

This nondescript tunnel has been featured in a number of iconic movies, from “Roger Rabbit” to “Back to the Future.”

Roadside tribute to a staple of eastern European cuisine.

There's nothing shrimpy about the world's largest artificial prawn.

A giant pan is on display to honor a community's sweet efforts.

Smoky, also known as "Yorkie Doodle Dandy," was a four-pound hero of World War II.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.