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

The real clothing store that inspired a fictional spy organization's front.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

The commemorative stone column conceals a secret laboratory.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This bookstore serves recipes from the cookbooks on sale.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

The Bristol Camera Obscura housed in an ancient windmill.

Soon after its unveiling, this giant inverted globe sparked controversy and was vandalized.

These marks in Myddelton Passage aren't your run-of-the-mill vandalism, and they weren't made by your typical vandal.

A display of everyday life in the area that was unveiled during the 2012 Summer Olympics.

Visit on a Sunday morning to see some killer tricks.

This hospital helped pave the way for treatment that drove down child-mortality rates in 19th and 20th centuries.

London's most popular recording studio, located in the capital's East End, runs partly on solar power and has played host to some of the world's biggest acts.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

King of the Saxons on top, Roman goddess of wisdom on the bottom.

Before becoming a poet John Keats studied here to become a surgeon.

Ship-sized kinetic sculptural fantasy.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

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

An unusual round church in London with a Templar past.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.