Commercial aircraft storage facility, where you can see a TWA 747.

Enormous photography collection housed in a study center co-founded by Ansel Adams.

This oversized flute-playing Ancestral Puebloan deity is also a landmark of Southwestern kitsch.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

An urban laboratory.

A spiritual vortex among the red rocks in Sedona.

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

A sharp bend in a dramatic river canyon cut through red rocks.

Most-visited and most-photographed slot canyon in the American Southwest.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The two writers famously didn't come to blows over the Oxford comma.

Mural fragments and various sculptures honor the longtime artist.

A bronze sculpture in the heart of Portland represents Maine’s most defining industry.

A work of art that pays homage to a Victorian timepiece in Providence.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

Rhode Island's tallest building bears a resemblance to the "Daily Planet" building and has been empty for more than five years.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

This statue honors a pillar of the early New Haven Black community.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

America's oldest archaeological site or a muddled case of wishful thinking.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.