This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Giant, friendly pelicans in Central London, the most unlikely of places.

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

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

The largest greenhouse in the world is home to over one million types of plants.

London's smallest police station is barely the size of a phone booth.

A fantastic castle rumored to be the birthplace of King Arthur.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Northern Ireland's Brobdingnagian stepping stones.

Eighty million natural history specimens call this gargantuan museum home.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A hugely vast Irish landscape of barren rock that stretches for miles.

The modern birthplace of Irish freedom.

A stunning Victorian abbey and walled garden on a lakefront.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

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

India's first open-air public art district sits in the heart of the country's capital.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

The oldest still-inhabited hill fort in India looks like a magnificent golden sandcastle.