A circular two-story museum built completely by hand with 800 tons of rock.

A brief journey through early 19th-century pioneer life across Linn County.

The last water-powered mill in Oregon is open daily for free tours and has a surprising history.

A monument to the center of the North American continent may be off by a few miles.

Though a proud Texan, the 41st President of the United States started life in the suburbs of Boston.

This statue is a commemoration of the only place where Freud spoke in the United States.

A small obelisk commemorates the launch site of the world's first liquid-fueled rocket.

A 1926 cow tunnel that passes underneath the nation’s longest road.

The final resting place of a man who claimed that he could tame even the mightiest of bears.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

A stone marker dedicated to the “Father of American Education.”

America's first public lending library began with a gift from Benjamin Franklin.

This cemetery is home to numerous granite headstones that are works of art unto themselves.

A plaque marks the spot on the bridge where one of the first elephants in the U.S., Little Bet, was gunned down.

The monument is inscribed, "To Sagamore John and those Mystic Indians Whose Bones Lie Here”.

The aviator lived here from 1924 until she became the first woman to cross the Atlantic by airplane in 1928.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

Earliest version of the American flag can be seen atop the hill where it first flew.

Solitary stone structures and a tale of tragedy are all that remains of a historic settlement built by French Protestant refugees.

Remember and reflect at this 9/11 memorial site.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

Portlandia is the second-largest copper repoussé statue in the United States.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.