This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Over 600 vacuum cleaners stack the shelves of what may be the cleanest museum in America.

This former Union fort commands a fine view of downtown Cape Girardeau and the Mississippi River.

A flat slab of stone perched hundreds of feet above the Gasconade River in the northern Ozark mountains.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

Community bookshelf of 25-foot-tall book spines.

Journey up the capitol building's cupola for an amazing view of Topeka.

Built in 1931, this small passageway is believed to be the first modern skyway.

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.

When flour explodes, it's not a pretty sight.

The oldest continually used church in Minneapolis also sells great meat pies.

This old residential building was once the largest flour mill in the world.

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

This iconic water tower and failed bandstand is open for panoramic views once a year.

This double-arched masonry highway bridge is the only structure of its kind in Minnesota.

The only thing these street signs will help you navigate is your imagination.

A renowned Civil War veteran, this Bald eagle now presides over the Wisconsin State Assembly.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

The only remaining historic maritime signal station in the United States.