The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

Thousands of people walk over this fantastic work of art every day, but how many notice it?

Sleepy Minneapolis block beats Guinness Record for most churches on one city block.

This Minnesota-shaped forest is actually located in the state it is shaped like.

The statue honors the booming birds Rothsay, Minnesota, is famous for.

One of two giant blue cockerel statues erected with an intentional double meaning.

This rare vessel mixed luxury with labor before being converted to a museum and sometimes haunted maze.

A mapping error in the 19th century made loggers think this section of the forest was underwater.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This massive roadside mascot was the first version of the giant to illustrate his butt.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

Two hula hoops appeared on the tree after a storm, and the collection kept growing.

In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

The oldest university museum west of the Mississippi retains its 19th century feel.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

"May the force be with you always."

A proto micro-nation sometimes populated by artists, surrounded on all sides by a Utah most barren.

A Mars simulation in the southern Utah desert.

This outsider art paradise is filled with dinosaur sculptures crafted from recycled machinery.

An oddly specific collection of handmade dolls remembers the women of the White House.