Legends surround this jagged rock formation in the New Mexico desert.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

This memorial includes fragments from one of the greatest tragedies in United States history.

The graffiti-covered ruins of an abandoned trading post in the middle of the Navajo Nation.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

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

One street divides a single town that stands in two U.S. states.

The resting place of a Civil War celebrity's amputated limb.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

FDR's Art Deco hospital tower was hopelessly inefficient.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

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

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

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