London's Top 10 Unmissable Sights

London packs centuries of history, art, and pageantry into a walkable core. Here are the ten essentials for any first visit.

1. Buckingham Palace – Monarch's official residence; watch the Changing of the Guard.
2. Tower of London – 1,000-year fortress, Crown Jewels, Beefeaters, ravens.
3. British Museum – Rosetta Stone, Parthenon Marbles, Egyptian mummies—free entry.
4. National Gallery – Van Gogh, Da Vinci, Turner in Trafalgar Square—free.
5. Tate Modern – Contemporary art in a converted power station—free.
6. St Paul's Cathedral – Wren's masterpiece; climb the dome for city views.
7. Westminster Abbey – Coronation church, royal tombs, Poets' Corner.
8. Houses of Parliament & Big Ben – Iconic riverside silhouette; book a tour.
9. 10 Downing Street – PM's residence; glimpse the famous black door.
10. Trafalgar Square – Nelson's Column, fountains, street performers, gallery steps.

Pro Tips

• Book Tower of London and Parliament tours weeks ahead.
• Many major museums are free—donate if you can.
• Walk the South Bank from Westminster to Tower Bridge for a perfect highlights reel.
• Oyster/contactless payment covers all public transport.