An ode to one of the first concerts broadcast via satellite.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Baltimore's first skyscraper may be home to the inspiration behind pulp fiction's most celebrated bird.

A painfully obvious spy house sits right across the street from the Russian Embassy.

The most accurate timepiece in the world.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

A public art jibe at one of the United States’ oldest and longest-serving senators.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

The romance of early commercial flight still fills this Art Deco destination.

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

This cannon dating to 1755 has stood guard at this suburban intersection since 1915.

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

This working class sculpture pounds his hammer all the livelong day.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

The cruel trial of a 13-year-old boy inspired the creation of this now abandoned reformatory.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

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

Fittingly, America's museum of architecture is itself a magnificently designed old building.