Rock face that shares a name with Mary Shelley's famous doctor.

Friction between grains of sand cause a curious "singing" sound.

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

This dam in the woods, built by Henry Ford with only manpower and oxen, holds no water and serves no purpose.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

A tunnel with windows, so you don't miss out on the impressive views.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The drama of nature in full effect in this Nevada State Park.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

A sacred mountaintop temple offers a fine cup of tea to visitors who can survive the journey.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

This nature mural exists to protect the surrounding environment and its own canvas from destruction.

The Old Man of the Mountain’s less-famous, but still beloved little brother is said to resemble a leader of the Abenaki tribe.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

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

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

One of the last remaining movie theatres in the country that features a rear-projection system.

These three lighthouses played a fundamental role in the maritime life of Eastham.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

Millions of numbers carved in glass represent the tattoos forced upon victims.

This impressive Boston holy house is the American mecca for Christian scientists.