The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

This Birdsill Holly fire hydrant is the remnant of a very different type of hydration innovation.

The world-record holder for the longest bridge stretching continuously over water.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

A bronze monument to Cleveland's favorite, fastest son.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

This steamer is known as "The ship that built Cleveland."

This magnificent Cincinnati graveyard is also a popular public park.

This stuffed pigeon of war had the very serious name "John Silver" until he lost a leg in battle.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

A real flying saucer, contracted by the U.S. Air Force.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

An architect's childhood fantasy treehouse made real.

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

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

This museum glorifies the humble potato.

Home to the deepest rift anywhere on Earth.

This unusual building straddles two countries.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

It's clear this abandoned Art Deco gem was no ordinary cleaners.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.