St. Augustine's record-setting narrow street was designed to protect against pirates.

A lion given to the prime minister somehow got stuffed and sent to Florida.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

This abandoned ironworks was once the most important military supplier in America.

This Japanese national treasure was originally built in 593.

Peace Park and the Atomic Bomb Dome.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

This 14th-century temple is also known as the "Temple of the Golden Pavilion" for its gorgeous gilded reliquary hall.

The quintessential Japanese rock garden has existed for more than 500 years.

An enormous pair of straw sandals woven in the traditional way—to keep demons at bay.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

A open air theatre built on a cliff by an eccentric British woman.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A museum dedicated to exhibiting remarkable outsider art.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."