Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

Inside this old mill is a collection of images that will always remain frozen in time.

Designed as a place for patients to take in the scenery, this tower has a dark history.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

A mysterious spirit totem at the edge of Navajo lands.

Founded by members of the Tohono O’odham Nation, this one-room joint's James Beard–winning fry bread is light as a cloud.

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

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

This historic national park is covered in the stunning ruins of red rock pueblos.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

An enormous, inside-out glass globe built in 1935.

This tiny patch of arid sand sits in one of the greenest states in the United States.

This Maine bridge may be the last wire-supported bridge of its type in the world.

This 19th century granite fortification is one of the most well preserved forts in New England.

Opened in 1947, this is the oldest continuously-operating drive-in theater in New York.

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

A B&B on a Victorian lighthouse station in San Francisco Bay.

Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.

Three hundred years of preserved Spanish colonial history in San Antonio.