The headquarters of the famous Yale society.

Connecticut grave of the woman responsible for the Winchester Mystery House in California.

Final resting place of a New Haven urban legend.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

An apparition of Virgin Mary in Herzegovina.

Bridge that died in war and was resurected.

This one-time health resort was used by aristocrats around the world.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Go inside to really appreciate this 500-year-old technological masterpiece.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

The only museum with its curator—and her pets—buried inside.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Elvis's own personal tropical hideaway.

These markers are used to document elevation changes around the famed dam.

Shakespeare has been brought to life in this open air theater for the better part of a century.

From the Difference Engine to the Cray-1, all under one roof.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

San Francisco Bay's ghost town.

This giant shopping mall still holds signs of its automotive past.