The castle still holds traces of the abandoned Roman fort it was built atop.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

Recently restored menagerie of Victorian-era beasts.

This plaque in one of London's oldest public hospitals commemorates the first meeting of two of Britain's most famous literary heroes: Sherlock Holmes and Dr. Watson.

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

The king of U.S. high points towers over every other peak on the continent.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."

The ancestral home of beloved English poet Lord Byron has a bizarre history.

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

A statue honoring 44 continuous years of greeting passing ships.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

3/4-scale model of the White House in Atlanta, Georgia.

A colorful square marks the heart of the city's LGBTQ community.

Paths are maintained, but trees have taken over plots.