A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

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

One of Serbia's oldest luxury hotels and a nostalgic echo to Yugoslavia in the state's former capital.

This art installation pays homage to the famed stones of European lore.

An unfinished Serbian Orthodox church with 1,389 golden crosses planned to represent the Battle of Kosovo.

A monument on the pavement marks the spot where two cultures that shaped Sarajevo come together.

This unique museum focuses on the Siege of Sarajevo through children's eyes.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

The lecture hall where Alexander Graham Bell first demonstrated the long-distance phone call.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

A tunnel with windows, so you don't miss out on the impressive views.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Avoid gangster interaction while window-shopping.

This supermarket is suspended 25 feet above an interstate highway.

This old mill and former police station now present a world-class collection of Orthodox iconography.

This hidden labyrinth offers walkers some brief peace of mind.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Impossibly life-like natural history models created out of glass by a father and son.

A men’s restroom became a sandwich shop.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.