The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A lush indoor jungle fills this bustling Madrid transportation hub.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Space-age minarets towering over Islamabad.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

This pub can leave even the sober feeling slightly unsteady.

A hidden gem in the middle of the city's infamous Jewelry Quarter.

A small alleyway with an unusual moniker.

It's possible to walk inside one of the largest Neolithic tombs in Britain.

Europe's largest prehistoric mound – burial site of a legendary king?

This section of the Kennet and Avon Canal has been designated the same level of heritage protection as Stonehenge.

One of the largest megalithic complexes in England, which local legend holds is a wedding party turned to stone by the Devil.

A petite castle folly in the English countryside.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

Home to Alan Turing, the cracking of the Enigma code, and Captain Ridley's shooting party.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

This iconic building was founded as a school for the impoverished, but became one for the sons of the local gentry.

The first peace pagoda to be constructed in the Western world sits next to a small English lake.