If you need a little guidance on where to wander, consult a local by taking one of London's top tours. The London Underground, otherwise known as "the Tube," is simple to use and has extensive routes throughout the city and into neighboring counties.

For 2026 travelers, the London Underground (The Tube) remains the fastest and most efficient way to navigate the city, with 11 lines covering 272 stations. However, the most "modern" and comfortable experience is the Elizabeth Line, which offers faster cross-city travel and air-conditioning. To pay, you should use Contactless (bank card, Apple/Google Pay) or an Oyster Card, as London buses no longer accept cash. A "daily cap" ensures you never pay more than a set amount for unlimited travel within a single day. For shorter, scenic trips, the iconic double-decker buses are a great high-value alternative, especially if you snag a front-row seat on the top deck. For 2026 "eco-travelers," the Santander Cycles (Boris Bikes), which now include a large fleet of e-bikes, are an excellent way to see the city at a slower, greener pace.