Where the four original members of the Ramones hung out and revolutionized punk rock.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

Inside a London bookstore, a fireplace that once belonged to the illustrator responsible for a famous set of tarot cards.

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

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

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

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

Catacombs turned marketplace.

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

A memorial for public executions that dates back to the 14th century.

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

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

The Great Fire of London and the regulation of one-way streets both started in this alley.

The commemorative stone column conceals a secret laboratory.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

One part local history, 99 parts gruesome haunted house.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This 1920s Dutch barge is now a floating bookstore.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

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