Outside a paint factory north of Manchester's city center, an inexplicable submarine sticking out of the ground.

A Victorian synagogue-turned-museum chronicles centuries of Jewish life.

Contrary to its heavenly name, this tranquil oasis has a dark and tragic history buried with it (quite literally).

Many of the cottages and houses of this tiny village are adorned with a local lord's collection of saintly statues.

The world’s second-largest flood defense barrier has protected London for decades.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The castle still holds traces of the abandoned Roman fort it was built atop.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

The world's oldest continuously operating record shop has been in Cardiff since 1894.

The ground on which Shakespeare’s initial playhouse once stood.

Pilgrimage site for star-crossed lovers.

At the entrance of this chapel is a fresco commemorating the dead from the plague outbreak of 1630.

If you ever wanted to touch a medieval mercenary’s three testicles, look no further.

It's believed that the dead were once taken out of houses through these now walled-up doors.

Hidden masterpieces in a small church in the medieval city of Bergamo.

The bizarre headgear looks like it was made for a fool, not a king.

One of three sites in England that house the National Collection of Arms and Armour.

Since 1995, two red-painted metal figures have guarded the entrance to the Northern Ballet.

Believed to be the largest single-stemmed oak tree in England.

A monument to early air travel and an unhappy cat.

Striking, enormous gold-plated sculpture of Buddha installed in the 19th century.

One of the four clock faces on this church is mismatched, in a nod to a historic slight.

A building that looks like a giant hedgehog, in the middle of East London.