A museum dedicated to exhibiting remarkable outsider art.

Home of a 28-foot tall stalagmite known as the War Club.

America's post-nuclear-attack chambers of Congress.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

The fifth-longest natural arch in the world, and the longest outside China.

An enthusiastically interactive mining museum that won't let black lung ruin the fun.

In the 1950s, two women saved this grand theater in the Colorado mountains from demolition.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

Thousands of American timepieces on display in the former clock-making capital of the country.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

An anonymous art project beneath Longfellow Bridge where hundreds of trophies line the steel support beams.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.