The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

The inconspicuous grave of the University of Illinois' first president is just steps from the main quadrangle.

The oldest experimental corn field in America is still creating better ways to grow crops.

Stand at the point where the two mightiest rivers in the United States converge.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

A museum in Mississippi celebrates the history of Coca-Cola and the man who brought it to the masses.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

Everything in this two-story house—down to the mounted deer head on the wall—was carefully crafted from concrete.

A community-owned museum that celebrates the history of the shipbuilding industry in this part of Nova Scotia.

This exaggerated sculpture resembles a well known feature of Vancouver:

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

10,000 flowered plants bloom in the City of Roses.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

A walk through the historic city center, under the streets of Seattle.

The only road through the heart of Glacier National Park.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A tunnel with windows, so you don't miss out on the impressive views.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A miniature village mimics the surrounding buildings so well it includes itself.