One of Frank Lloyd Wright's final works was this UFO church.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

This unique crypt designed by Frank Lloyd Wright for his longtime friend was not completed in either man's lifetime.

This forgotten Frank Lloyd Wright house is an architectural marvel at the end of a sleepy residential street.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

This Frank Lloyd Wright summer house was designed along Lake Erie as a retreat for a client's wife.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This rustic old building is said to be the most photographed barn in America.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

This impressive working clock made of 16,000 plants changes its flowers twice a year.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

Iron Butterfly's personal collection of footwear.

Every year locals give the bear a fresh coat of paint to preserve its signature goofy grin.

The lake that fills and empties itself at random.

The atmospheric road was never meant to be so creepy.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.