The restaurant keeps a hidden séance room on the second floor and reserves a table for the spirit of the former owner each night.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

Beneath a Virginia City bar is the entrance to an abandoned gold mine.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

The arch that celebrated the completion of the Lincoln and Victory highways.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

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

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

The last street in Pittsburgh that's paved with wood.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

The nearly 120-year-old piece of pork wears a brass collar and was once a man's "pet ham."

The oddly shaped, steam-spewing building is now an art studio and gallery.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This abandoned horse racing track was an exercise in hubris from its inception.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

A geological mystery on Camelback Mountain.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

These free-roaming horses were once destined to disappear from the land.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

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