Salvation Mountain creator Leonard Knight wanted to express that "God is Love." This 50-foot tall adobe mountain in the California desert was his canvas.
Roadside America —
Salvation Mountain creator Leonard Knight wanted to express that "God is Love." This 50-foot tall adobe mountain in the California desert was his canvas.
David McNew/Getty Images
This stucco and adobe Prada Marfa "store," near Valentine, Texas, is actually an art installation created by art duo of Michael Elmgreen and Ingar Dragset.
Roadside America —
This stucco and adobe Prada Marfa "store," near Valentine, Texas, is actually an art installation created by art duo of Michael Elmgreen and Ingar Dragset.
Matt Slocum/AP
Ruby Falls is a 145-ft waterfall deep inside Lookout Mountain in Chattanooga, Tennessee. Tourists have been visiting the dramatic underground site since the 1930s and show no signs of slowing down.
Roadside America —
Ruby Falls is a 145-ft waterfall deep inside Lookout Mountain in Chattanooga, Tennessee. Tourists have been visiting the dramatic underground site since the 1930s and show no signs of slowing down.
Gavin Hellier/Getty
Biosphere 2 was built in the 1980s to research space-colonization technology. That mission didn't work out and now it's a University of Arizona research center.
Roadside America —
Biosphere 2 was built in the 1980s to research space-colonization technology. That mission didn't work out and now it's a University of Arizona research center.
Visions of America/UIG via Getty Images
Construction of the labyrinthine Winchester Mystery House went on for 38 years.
Roadside America —
Construction of the labyrinthine Winchester Mystery House went on for 38 years.
Library of Congress
Wall Drug is 76,000 square feet of Americana. In business since 1931, the store in Wall, South Dakota, is one of America's best-known roadside attractions.
Roadside America —
Wall Drug is 76,000 square feet of Americana. In business since 1931, the store in Wall, South Dakota, is one of America's best-known roadside attractions.
Melanie Stetson Freeman/The Christian Science Monitor via Getty Images
Painted footprints mark the entrance to the Skunk Ape Research Headquarters shown in Ochopee, Florida. Founder Dave Shealy has devoted decades to proving the existence of the Florida skunk ape.
Roadside America —
Painted footprints mark the entrance to the Skunk Ape Research Headquarters shown in Ochopee, Florida. Founder Dave Shealy has devoted decades to proving the existence of the Florida skunk ape.
Al Diaz/Miami Herald/AP