One of the world's largest collections of pathological specimens.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Charles Babbage's proto-computer, painstakingly brought to life.

William Blake claimed to have painted this gothic masterpiece after encountering this nightmarish being in a vision.

This macabre painting of a Shakespearean scene looks like something out of a nightmare.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

A relic from one of London's worst 19th-century slums.

The remains of a historic football stadium that once hosted 50,000 spectators.

Though it's not the largest, this one-kilometer outdoor market is reportedly the longest in Europe.

One of London's oldest houses contains a mixture of both old and modern features.

Built by George III to observe the transit of Venus, this Georgian gem is a unique survivor in the Arcadian landscape of Richmond upon Thames.

What might be the oldest living tree in London has survived fires, bombings, and estate agents.

Preserved behind glass, the ruins of a medieval building used to store human remains.

The anatomical-pathological collection of a man who changed surgery.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

A glorious pub known for a spiteful printing feud and its famous typeface lost—then found—at the bottom of the Thames.

Collection dedicated to brands, packaging and advertising.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

The sign at the garden gate reads: "These Plants Can Kill."

This cramped crevasse saw the entire population of its island suffocated inside its depths.

This 16th-century close preserves an unusual piece of Edinburgh's transportation history.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

Scotland still bears an enormous scar of its Roman past.