A building shaped like the Army Corps of Engineers logo, because why not?

Before Nixon, "watergate" meant canals.

The most accurate timepiece in the world.

A derelict bit of transportation infrastructure hidden in the woods.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A wall of chewing gum moonlights as collective art.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The romance of early commercial flight still fills this Art Deco destination.

A geological mystery on Camelback Mountain.

Opinions differ as to whether this Arizona tree was actually used as a Wild West jail, but that hasn't stopped the town from capitalizing on it.

The unusual burial monument of Arizona's first governor.

A Wild West jailhouse that slid down the mountainside.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

The world's largest military aircraft cemetery.

What is the Thing?

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

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

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A spiritual vortex among the red rocks in Sedona.

A portal into the bricked up canal that runs through the heart of Washington D.C.

Worker-owned cooperative and resource for those looking to lighten their ecological footprint.