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

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

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 somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Glasgow’s piece of the patron saint of love.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This king penguin is a knighted brigadier of the Norwegian Army.

An American ghost town hides along a side street in Scotland's capital.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

A 18th century graveyard and its astonishing cortege of macabre iconography.

The fountain marks the area where hundreds of accused witches were burned at the stake.

This 16th-century house tells the city's history through old artifacts and quirky tales.

This extraordinary Viking artifact has traveled throughout the city.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

This Stockholm light tower can be controlled by anyone with a smartphone.

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

When a conglomerate of visionary startups commandeer a disused Greek Orthodox Church, zaniness ensues.

This historic Canadian jail was once the longest operating prison in the country and is now open for people to incarcerate themselves.

The only town in the world with two exclamation points in its name.