A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

The remains of a boarding school designed to forcibly assimilate Native American children.

Don't blink or you'll miss it.

A tribute to the statues of Easter Island along Route 66.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

Parking garage where Bob Woodward met Watergate source "Deep Throat."

At 207 feet, one of the world's longest continuous escalators.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

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

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

There’s a hidden military meme engraved on the World War II Memorial.