What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.

According to legend, you must remain completely silent while passing this man-made mound or suffer the consequences.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

A Roman-style column in Oregon hides a spiral staircase inside.

Two massive rock outcroppings on the Oregon coastline.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

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

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

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

This sandstone mansion was the home of two of Oregon's most important pioneers.

Portlandia is the second-largest copper repoussé statue in the United States.

An extravagant western hotel where every floor is the "ground floor."

Giant papier mache hog sits on private property.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

An underground magnet for ever-changing street art.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

A museum and shop on Bourbon Street located in the French Quarter.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

This charmingly homemade amusement park has been growing for 40 years.

A beautiful 62-acre Catholic shrine and botanical garden.