This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

The Tudor-style cottage in the middle of the square is not quite what it seems.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

The final resting place to 300 Victorian-era pets hides inside the city park.

The commemorative stone column conceals a secret laboratory.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

An incarceration museum on the spot of possibly the oldest prison in England.

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

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

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

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

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Giant, friendly pelicans in Central London, the most unlikely of places.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

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

These ornate arches show how the course of the River Thames has changed.

This coffee shop lies hidden beneath a historic church.

A surprising, but overlooked example of geology in the middle of the nation’s capital.