This pharmacist and his patient greet visitors to the National Community Pharmacists Association.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

America's first federal monument.

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

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

Spectacular views await visitors to this lake.

The only road through the heart of Glacier National Park.

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.

The only remaining historic maritime signal station in the United States.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.

A throwback train ride transports passengers through one of the lesser-known national parks in the country.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

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 tunnel under the Capitol Building where Congress takes out its trash.

Also known as the Founding Church of Scientology.

An overlooked memorial honoring the local Washington residents who died in World War I.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

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