Pennsylvania's own Roswell-style UFO mystery.

Even Henry David Thoreau found this glacial pothole irresistible.

Packed with gear and memorabilia, this museum chronicles the history of skiing and how its rise shaped New England.

A gas station and a state sign commemorating the most famous claims of extraterrestrial abduction.

So many migrating birds roost on the bridge, it has a special summer speed limit.

Perhaps the oldest vine in North America, this sprawling plant helps make a sweet wine.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

This 5-by-6-foot wooden hut is the smallest historic post office in the U.S.

A UFO scrapyard in the California desert.

The only free-standing, vertical sundial in the US was keeping standard time before it was even invented.

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

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

Finally the worlds of UFO enthusiasts and beef jerky lovers have come together in this roadside shop.

The colossal cartoon man stands outside a Nevada museum.

This dry lake bed contains the oldest known petroglyphs in North America.

The site of an underground detonation of a megaton nuclear bomb in the middle of the Mojave Desert.

Thousands of acres of beautiful wild landscape in the Great Basin.

An errant donkey ushered in a new era of mining in Nevada.

A sprawling museum located on the former site of the Orphan Girl Mine.

A unique solar-powered pottery studio and gallery in the desert.

The highest point in Nevada had to be decided by court order after California tried to claim it as their own.