What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

A circus legend leaves an unexpected endowment.

Themed gardens, a conservatory, and a rose named for Milton Hershey, all overlooking Hersheypark.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

This mobile theater show highlights the story of Hershey through fun facts, unique stories, and plenty of candy samples.

This Las Vegas casino boasts one of only three spiral escalators in the United States—an engineering wonder.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."

The highest point in Montana is as rugged and singular as the state itself.

Cabins once lived in by Butch Cassidy and the Sundance Kid are featured at this Old West living history museum.

At the time of its completion, it was the tallest dam in the world.

One man's ambition created this psychedelic log home.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Home to a vast and influential collection of Shakespeareana.

Decades before the scandal, this staircase on the river was a literal "water gate."

The Lincoln Memorial has inspired many, even though a word on the inscription appears to be spelled incorrectly.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

An overlooked memorial honoring the local Washington residents who died in World War I.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The 28,000-year-old specimen is remarkably intact.