This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Although now a decaying ruin, this stone cabin's history includes several notable figures.

Ancient pueblos built into the base of a natural canyon wall.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

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

A replica of the flagpole that gave a frontier town its name.

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

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

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

A musical instrument played by the sea.