This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

A serene temple with stunning stained glass hides in downtown Dallas.

The same security that protects our nukes accidentally protected a gentle herd of antelope.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

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

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

A beautiful geyser under environmental threat.

This beloved marketplace mascot poops money and grants good luck.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

World's first "penitentiary," meant to be humane, drove men insane.

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

Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

One of the first Second Empire-style buildings constructed in North America.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

Also known as the Founding Church of Scientology.

"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!”