This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Dramatic river bend surrounds a natural red-rocked pedestal.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

This golf ball–shaped former desert real estate office now houses a UFO museum.

One of the largest, oldest, darkest, quietest motel rooms in the world.

See massive fossils that are over 200 million years old in northeastern Arizona.

This historic national park is covered in the stunning ruins of red rock pueblos.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

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

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

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.

A geological mystery on Camelback Mountain.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Once a year, at exactly 11:11 a.m., this monument comes to life.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

A restaurant on Staten Island showcases a different grandmother’s cooking every night.

Trace the history of writing at this unusual North Carolina destination.

The Arctic Circle runs through this isolated spot north of Iceland.