An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

Huge abstract sculptures of the Puerto Rican Flag.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The face of a woman pushes its way through the earth.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Statue dedicated to the star of an old television show.

A steeple that now houses a small church.

The largest mural in the world painted by a single artist.

One of America's largest retail chains got its start in one of its most remote rural destinations.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

This town is home to the world’s largest arch constructed entirely of elk antlers.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

A popular rock that acted as a waymarker for American pioneers.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

The highest point in Texas is capped by a big silver pyramid.

A view-altering observatory at the University of Texas.

A stone marker commemorating the first time sound was transmitted over wires.