A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The site of the climactic scene from the classic horror film is now a historic landmark.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This fertility idol of questionable authenticity inspired an iconic Indiana Jones artifact.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

Look closely and you’ll notice that the color changes a third of the way up the tower.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

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

A serene temple with stunning stained glass hides in downtown Dallas.

This downtown Dallas art installation is always on the lookout.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

A castle on a hill once named "the most beautiful high school in Massachusetts."

A grave surprise in the downtown area of New England's second-largest city.