After just one epic test blast, this literal loose cannon proved too explosive for combat.

This statue commemorates the meeting of the most influential minds of the women’s rights movement.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

An overlooked memorial honoring the local Washington residents who died in World War I.

A comedy troupe's collection of bizarre humor.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Buffalo's abandoned concrete grain elevators are getting a second life.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

A historic hotel library in Indiana hides more than a few secrets on its shelves.

At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.

This Art Deco airport was once deemed “the air hub of the Americas.”

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

The Citrus Variety Collection at UC Riverside contains two trees of each of the 1,000+ varieties of citrus.

San Francisco's first World's Fair, dedicated to the wonders of California.

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

Concrete strongholds stand guard over the Golden Gate.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

The largest historic preservation organization in the United States.

"Where the ducks walk on fish."

A historic and oft-filmed prison stands in a Chicago suburb.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

A haunting army of decomposing, moss-covered stuffed animals and dolls guard this swinging truss.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.