Profile of a sleeping person 4km long in 250m high cliffs.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

A curious sculpture garden and museum in Cochrane, Wisconsin.

Half of a waterfall goes into the river while the other half seems to disappear.

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

These curious caverns have been home to mushrooms, gangsters, and disco.

A museum within a museum, devoted to history's most questionable medical devices.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

Minnesota's oldest and deepest mine is now an underground physics laboratory.

The oldest remaining frame residence in Minneapolis.

An amazing collection of sculptures and art.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Every president in history is immortalized in bronze in downtown Rapid City.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A fitting attraction for the corn capital of the world.