Scattered throughout London are ancient remnants of the city's former bounding wall.

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

In an arboretum with hundreds of memorials to the fallen, this one might be the most poignant.

A bay of elaborate, historic toilets are held in high esteem at this Scottish dock.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

Used as an example in one of the first dictionary entries for "museum" in 1706.

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

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

Eyam took steps to quarantine themselves and keep the plague from spreading.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

Famously misunderstood wonder of the ancient world

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

A magnificent winding road through a steep valley, with deep natural caverns at the bottom

France's most famous cemetery, with some of its most curious tombs.

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

The most visited, and possibly most controversial, museum in Germany.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This disused Cold War bunker has been restored to all of its early 60s glory.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

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