A jaw-dropping brutalist space church seems to have crash-landed in the middle of America.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

This freshwater spring fills with 10,000 gallons of water per minute.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

Dozens of lights dangle from the branches of what may be the brightest tree in Los Angeles.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Five candy-colored villages on the Italian Riviera.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

A museum dedicated to exhibiting remarkable outsider art.

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

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

This large midwestern cavern features impressive rock formations and an underground waterfall.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

These azure waters were thought to lead to the Mayan Underworld.

Half of a waterfall goes into the river while the other half seems to disappear.

Outsider art meets paleontology at this roadside reptile repository.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The only diamond mine in the world where you can keep what you find.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.