A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

England's most famous front door has an accidental doppelganger.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

The commemorative stone column conceals a secret laboratory.

This one has sailed five times as far as Sir Francis Drake's famous ship.

This popular square's history as the former site of a church is right beneath your feet.

A Reformation-era fiery figurehead once denoted this location as a print shop.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

One of the shortest streets in York has an especially odd name.

Makers and sellers of the original and finest York Ghosts.

This network of narrow, medieval passages has the most delightful name.

A century-old tradition has culminated in a small but singular collection of feline effigies.

Follow the original medieval paths that wind through this intriguing section of the city.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

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.

The modern birthplace of Irish freedom.

The house where the writer spent his formative years.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

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

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

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