In Greenwich, the National Maritime Museum’s free Nelson, Navy, Nation gallery explores life at sea and the Royal Navy’s role in Britain. General entry needs no booking, a free reservation guarantees entry. Special exhibitions may charge; nearby attractions have separate rules.

It beats Wallace because we prefer a historical theme to a concentrated art collection. IWM wins for a broader conflict-history introduction. Maritime enthusiasts can rank it above both. Give Greenwich its own place in your itinerary rather than squeezing it between central London galleries.

Sources: Visit · Highlights.

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