This church on a Tohono O'Odham reservation has stood since 1797.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

A natural history wunderkammer in the middle of the desert.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

A geological mystery on Camelback Mountain.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

A spiritual vortex among the red rocks in Sedona.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

A hulking remnant of Alaska's industrial gold mining boom in the 1920s.

Considered by many to be one of the most dangerous highways in Alaska.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

During the summer, surfers in Alaska take advantage of this inlet’s unusual water patterns.

This whimsical stacked cabin looks like something out of a children's book.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

Step back in time while shopping inside this local store.

Remnants of a quarry company town still stand on the banks of the Wapsipinicon River.

This simple home was the beginning of a long journey for the iconic Western film star.

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

An eclectic assortment of medieval architecture in a small Iowa town.