One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

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

Packed with gear and memorabilia, this museum chronicles the history of skiing and how its rise shaped New England.

According to folklore, Vermont's slanted windows were installed to keep witches from flying into the house.

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.

An ancient glacial pothole waterfall in the heart of the Green Mountains.

This unusual building straddles two countries.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

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

A quarter mile off the coastal tip of Maine you'll find the "Beloved Island" of Franklin Delano Roosevelt.

The 32nd president's sprawling cottage sits on an island enclave jointly managed by the U.S. and Canada.

This candy-striped tower is the farthest east you can go in the United States.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

These barriers stand as stark reminders of Northern Ireland's troubled past.

These engineering masterpieces are a dominant feature of the Belfast skyline.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

The oldest working mechanical clock in the world.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.