A dozen U.S. presidents have stayed at the historic resort, which was known as James Buchanan’s “Summer White House” from 1857-1861.

Remember and reflect at this 9/11 memorial site.

This giant, rotating globe was built to celebrate the expansion of a company that makes steam cleaners and pressure washers.

In the parking lot of a fast food restaurant, a statue memorializing a prolific bull elephant.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

This Native American settlement dates back to the Pueblo II period.

A mysterious spirit totem at the edge of Navajo lands.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

The eroded core of an ancient volcano is now accessible by a short hike.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

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

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

Millions of years of erosion created the feature for which this rock formation is aptly named.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

The mansion and cenotaph of the New Hampshire Faust.

Generations of rockhounds got their start at this beloved, historic mine.

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.

This cabin survived a landslide that killed its owners.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.