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

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

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

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

When waves crash onto this section of beach, the rocks sing a song.

A collection of 1,300 accordions of all shapes and sizes displayed in chronological order.

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

A hidden courtyard houses early 20th-century plaster masterpieces.

Elaborate drama imparts an appreciation for 19th century hardships.

An amazing collection of sculptures and art.

This statue of Olympic hockey coach Herb Brooks immortalizes one of the greatest moments in American sports history.

Each of these 87 large stones has a unique message. Together, they form part of the Minnesota Military Family Tribute.

A 115-year-old restored German dining hall awaits those who venture beneath the Minnesota State Capitol.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

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

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

A home designed to be on the cutting edge of comfortable, low-cost living.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

Hundreds of samples of "Devil's Rope" hide in a defunct vintage elevator.

This otherworldly church spire reaches up toward the heavens.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

Nature's biggest mammal swims in landlocked Oklahoma.