A community of artists and entrepreneurs seeks a simpler life on London's waterways.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

A network of concealed passageways lies within a busy London Underground station.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Traveling collection of amazing automata.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

Artists and musicians now rule over this former rail station.

A historic arboretum and non-conformist, non-denominational park cemetery.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

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

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

The remains of Crystal Palace Great Exhibition of 1851.

The largest of London's subterranean rivers and once a mad, bad center of London life.

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

The signs of a long buried road can still be found hidden beneath a London sewer grate.

Catacombs turned marketplace.

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

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Rebuilt remains of a temple to Roman god Mithras.

The curios of pharmacist and collector Henry Wellcome.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.