The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

This "little gallery in the middle of nowhere" is housed in a 170-year-old horse barn in the Missouri Ozarks.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Oldest surviving example of a Dutch saltbox frame house in America.

This tiny museum hidden above a restaurant houses thousands of modern and traditional kites.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Alexander Hamilton’s creation caused quite a bit of controversy.

One of Philadelphia's largest murals resides hidden under this bridge.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

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

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

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.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

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.

Where America's first doomsday cult awaited the end of the world.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.

Florida’s first home built with eco-friendly hempcrete.

Tucked away in the forests of North Florida resides a 19th-century lighthouse.

This divisive system of turtle tunnels was built to save animals stranded after a highway split a lake in half.

This small museum concentrates on the juicy history of orange production in Florida.