If you visit only two or three cities of the world in your lifetime, make one of them London. Stroll its streets, visit its museums, photograph its landmarks, and patronize its pubs. While it may not be the most beautiful or the most romantic city in the world, its one of the most fascinating.

Laid out like a great wheel with Piccadilly Circus at its hub, Europe's largest city at first may seem daunting. Dozens of communities branch out from its center, each with its own attractions, lifestyle, hotels and restaurants. While most visitors spend much of their time in the West End and London's historic district, called "The City" by locals, there's so much more to see.

Read the 23 Photos of Quick Guide to London