Spring (April-May) and autumn (September-October) offer pleasant weather and fewer crowds than summer, though London is worth visiting year-round with each season offering unique charm.
You can take the Heathrow Express train to Paddington (15 minutes), the Underground Piccadilly Line, or book a black cab or private transfer depending on your budget and luggage.
Yes, major museums like the British Museum, National Gallery, V&A Museum, and Natural History Museum offer free general admission, though special exhibitions may have fees.
Three to four days allows you to see major attractions like Tower Bridge, museums, and neighborhoods, but seven to ten days is ideal to experience London's culture, markets, and lesser-known gems.
Cancellations, lost luggage, medical emergencies — travel insurance covers the unexpected for under US$2/day.
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