Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

This location holds the truth to what truly happened that faithful night.

Utopia and nostalgia mingle at the site of Bronson Alcott's ill-fated agrarian commune.

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

The Hudson River School comes alive at this palatial estate.

The smallest post office in the United States is no bigger than a broom closet.

Wander the sprawling living museum on the site of one of a 16th-century community.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

One of the most scenic falls in Massachusetts has a history of death and grim legend.

The site of the first "historically true" UFO encounter in the U.S.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

Resonating tubes make music from highway overpass.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

Herman Melville wrote 'Moby Dick' in this landmark 18th-century house surrounded by farmland.

The mansion home of author Edith Wharton.

The bears may be gone, but their old cages can still be found.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.