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

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

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

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

A devastating booze inferno poured through the streets, claiming several victims who drank it.

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."

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This pub built its reputation pouring post-shift pints for employees of the cemetery with which it shares a wall.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

The house where the writer spent his formative years.

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

This ancient Irish tower could easily have stood in for Rapunzel's prison.

There might not be much left of these Irish ruins, but their linguistic legacy is still going strong.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

People have been placing babies on these lilies for photoshoots since the Victorian era.

Once housed in the towers of this Gothic church, this 17th century clock still ticks today.

Science meets wall art to highlight the beauty of famous mathematical equations.

A massive explosion that leveled hundreds of buildings in the city of Leiden is remembered by a waterside plaque.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.