Are museums really free?

Yes. While they suggest a donation, the permanent collections of national museums are legally free to enter.

Do I need to book in advance for free stuff?

Yes, for popular free attractions like the Sky Garden or major museums, booking a timed entry slot is essential to ensure entry.

See London on a Budget: How to Visit Top Attractions for Free

You can see most of London's world-class museums, galleries, and historic parks without spending a penny. Focus your visit on the permanent collections of state-funded institutions and utilize free walking routes to bypass paid tours.

Prioritize state-funded museums. The British Museum, Natural History Museum, Science Museum, and the V&A do not charge for general admission. Book a 'free timed entry' slot online at least 2 weeks in advance to skip the queue.
See the skyline from the sky. Skip the expensive Shard viewing deck. Book a free ticket for The Sky Garden or The Lookout at 8 Bishopsgate. They open slots 3-4 weeks in advance; they go fast, so set a calendar alert.
Use free walking routes. Don't pay for city tours. Follow the 'Jubilee Walkway' or the 'Capital Ring' trails. Use a free app like Citymapper to navigate between landmarks like St. Paul's, the South Bank, and Covent Garden on foot.
Watch the Changing of the Guard. It takes place outside Buckingham Palace at 11:00 AM on specific days (usually Mon, Wed, Fri, Sun). Position yourself near the Victoria Memorial by 10:15 AM for the best view without paying for a guided tour.

Are museums really free?: Yes. While they suggest a donation, the permanent collections of national museums are legally free to enter.
Do I need to book in advance for free stuff?: Yes, for popular free attractions like the Sky Garden or major museums, booking a timed entry slot is essential to ensure entry.