The cinder cone volcano with a less than complimentary name.

An optical illusion found amid a logged redwood forest.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

A replica that won't float away.

This lonely gas station has stood at this location since 1917.

This quirky piece of naval artillery has been deafening Canadians for over a century.

The scattered debris of a T-33 Canadian naval jet crash from 1963 now stands as a memorial.

The mountaintop wind turbine boasts a viewing deck — and a fair share of controversy.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

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

The world's largest underground iron ore mine.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

One of the largest private collections of cars manufactured by the short-lived Franklin Automobile Company.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

The largest and most well-preserved petroglyph site in the Verde Valley.

An urban laboratory.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

An off-the-beaten path cave with an underground lake.

A self-built castle made by a mysterious man.