A land of debatable treasure.

Contractors in this Oregon town have been stamping their names in sidewalks since 1908.

This abandoned church dominates the landscape of a former mining boomtown.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

A mysteriously dark cemetery monument fuels stories and legends galore.

A former atom smasher turned into an art gallery.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

These pretty kitties killed and ate as many as 135 railway workers.

Boise State's stadium was the first non-green football field in the world.

A couple turned their front yard into an artistic masterpiece.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The only house in Oregon designed by the famous architect, Frank Lloyd Wright.

This frequently-photographed waterfall takes only a short hike to visit.

Run by members of the Tohono O'odham Nation, this community farm nurtures traditional desert cultivars.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

Legend says train robbers stashed their gold within the depths of this unusual cave.

The remote resting place of a notorious Wild West outlaw whose death is shrouded in mystery.

America's only nuclear missile silo open to the public.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This centuries-old pueblo church houses the body of a Franciscan friar who is said to be a rare "incorruptible" corpse.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.