This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

This hidden jockey “walk of fame” celebrates the winning riders of the Kentucky Derby.

A trompe-l'oeil statue honoring the first guide dog in North America.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A 20-foot-tall egg painted in a traditional Czech patterns by the Czech community in Wilson, Kansas.

A fitting attraction for the corn capital of the world.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

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

Largest Roman Catholic church in North America.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

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

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The Pentagon is so large that it was planned like a city, complete with internal highway infrastructure.

The romance of early commercial flight still fills this Art Deco destination.

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