This vintage short line in Amish country runs passenger steam train excursions and still hauls freight.

This is the last hand-cranked chain ferry of its kind in operation in the United States.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The remnants of a fictional Viking village film set now serve as an educational and historical hotspot.

This Underground station has been a popular filming location for decades, even before it closed.

Nine nice parcels of land along a flight path offer a quiet respite... until a plane soars overhead.

Take a hike to this remote, scenic tea stop in the Canadian Rockies.

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

These 400 million-year-old caves feature honeycomb limestone formations.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

North America's largest accredited model railroad museum.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

More than a century old, this trading post resides in the Navajo Nation.

English parliaments were once convened by this ancient oak tree in the heart of Sherwood Forest.

The longest and steepest staircase locks in the United Kingdom.

This restored log building was one of the first toll booths for travelers along the Northern Turnpike.

This lookout tower built in the 1930s is now an in-demand cabin with what might be the best view of the Seneca State Forest.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

An off-the-beaten path cave with an underground lake.

During World War II this was the site of an "honor camp" used as a prison for draft dodgers, Native American conscientious objectors, and Japanese-Americans—including a man who brought his case against the camp to the Supreme Court.