Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

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

A particularly disconcerting tribute to Irish martyrs.

The modern birthplace of Irish freedom.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

The house where the writer spent his formative years.

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

A plaque pays tribute to the artist's longtime London home.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

There's an exclusive Beefeaters pub hidden in the Tower of London.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

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

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

Order bagels and lox from an iconic Jewish delicatessen with nearly a century of history behind it.

This East End pub gained notoriety as the site where gangster Ronnie Kray publicly shot a rival.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

One of America's founding fathers lived in this London lodging between 1757 and 1775.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

One of the largest trees of its kind in California.