Canyon walls shrouded in ferns.

Its dark depths conceal millions of rare, delicate crystal formations.

This lone survivor of a regional franchise still slings delicious burgers and colossal servings of fries.

Thousands of majestic trumpeter swans fill this park, sounding distinctly like a certain brass instrument.

This French Canadian classic is a specialty of the oldest continually used church in Minneapolis.

An eatery within the Minneapolis American Indian Center writes colonial ingredients out of the story of Native American cuisine.

These curious caverns have been home to mushrooms, gangsters, and disco.

This large midwestern cavern features impressive rock formations and an underground waterfall.

Half of a waterfall goes into the river while the other half seems to disappear.

This beach-side arcade is believed to be the oldest penny arcade in America.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

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

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

Unicorns, elephants, and bears, oh my!

A historic pub with traditional Irish cuisine, fine drinks, and a paranormal past.

Martha's Vineyard's most beloved speakeasy sells late-night pastries.

Try a classic Necco candy bar being resurrected in a small suburban shop.

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

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

It's not a typo, now say it five times fast!

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.

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

Trash escaped from a landfill to fill beaches with all kinds of treasure.