The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

A whopping 14,000 copper coins cover this miniature fighter jet.

A double agent hid information for the Soviet Union beneath this bridge for more than 20 years.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The oldest continuously occupied public building in the United States.

This high desert botanical garden is a unique display of New Mexico’s ecology and culture.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

A trash dump made beautiful by nature's power.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

A tribute to the beloved, kind-hearted "homeless mayor" of Silver Spring.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

Tirelessly maintained by a Wisconsin man named JFK.

An eerie site of reverence for those who have completed an epic journey.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

An increasingly eccentric apartment building, topped with winged beasties.

60 feet of towering steel balances gracefully.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

An abandoned church gets a second life as a massive beer hall and event space.

Once America's tallest structure, now a Baltimore landmark.