A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Just a man taking his prehistoric pet for a stroll.

The only arched bridge made of stone on the entire Mississippi River.

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

20,000 pieces in a Frank Gehry-designed building.

Each year, one talented artist puts on a show sculpting twelve butter-based busts of dairy princesses.

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.

This small, but beautiful waterfall has attracted visits from artists, composers, and two United States presidents.

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

Opened in 1956, the first modern indoor shopping mall in the world was inspired by the shopping arcades found in European cities.

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

The first declared National Monument in the United States.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

A cemetery housing wild west legends in South Dakota.

Seth Bullock, the sheriff of Deadwood, built this town immediately after Teddy Roosevelt’s death in 1919.

This vintage train once gave new meaning to “swimming upstream.”

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

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

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

This towering wooden Sasquatch was carved with a chainsaw.