This overlooked street light once served as a KGB dead letter box.

The exit of the largest prisoner-of-war escape attempt on American soil during World War II.

Archaeologists believe this panel of petroglyphs depicting descending sheep and other figures in Glen Canyon are 3,000 to 6,000 years old.

This historic pink parlor keeps Phoenicians cool with homemade, retro ice creams.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

This tucked-away cemetery is the final resting place of a prospector who uncovered one of the largest gold mines in Arizona.

A 1930’s courtroom where John Dillinger and his gang went before a judge.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

An excursion train traverses a picturesque red-rock canyon along the Verde River.

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

More than a century old, this trading post resides in the Navajo Nation.

Two geoglyphs that are truly unique to North America.

This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

Visitors to this public park will also find the ruins of an old western fort.

A stone pillar commemorates the surrender of the extraordinary Apache leader.

One of the largest open-pit copper mining operations in the entire country.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

Giant telescope mirrors built in a spinning furnace under a college football stadium.

This comprehensive collection features Native American artifacts dating back centuries.

This collection of vintage signs reflects the long and colorful history of this Arizona town.

This unique competition celebrates an American Indian and Canadian First Nation cultural tradition.