A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

A popular swimming hole that hides one of America's most deadly diving spots.

A vaudeville performer mounted this hollowed-out redwood log onto the chassis of a truck, and toured the country spreading a message of conservation.

The monument dedicated to Phineas Gage in the town where his accident happened.

The first evidence of some of the Earth's earliest life was found in this fossilized undersea grotto.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

A unique sculpture park that specializes in the huge and bizarre.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The largest earthwork effigy in the world.

The oldest surviving botanic garden in the United States.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

A toxic ghost town sitting atop a massive coal fire.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

Why have you never heard of the second most popular tourist site in New York?

This Catskills museum preserves stumps from the earliest known fossil forest on Earth.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

An art deco ice cream shop covered in vintage tiles.