This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

The ancient tomb acts as a calendar that keeps perfect time.

An ancient neolithic tomb that only sees the sun twice a year.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

A hugely vast Irish landscape of barren rock that stretches for miles.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Home to the only outdoor municipal elevator in the United States.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

A fine, large-aperture telescope available for public use.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Hollowed out cedar log tubs set in an ancient towering forest.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

America's oldest archaeological site or a muddled case of wishful thinking.

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

The largest tidal whirlpool in the Western Hemisphere.

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.