Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

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

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

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