History in your backyard! Take one of their many tours offered. Eat at Sir Winston's, the food and service will make you feel like you're dining in First Class. Or,simply stroll on the decks, take in the atmosphere. Have a cocktail at The Observation Bar. It's all good at The Queen Mary!
Really neat history and venue and would like to try when I am not in a large group of 50+ as it was, to me, sort of like hotel conference food. I had a steak. My buddy had the fish and really enjoyed it though. Perhaps the individual tables are better. The bar was hopping. Overall very cool, large group food okay.
The Queen Mary is great, if you're really clear on what you are getting. The ship has NOT been modernized, unlike some historic properties. The rooms (and bathrooms) are straight out of the 1920s, with TVs and WiFi being pretty much the only accommodation to modernity in the guest rooms. The rest of the ship is much the same, basically a floating museum, including guided tours. There's a decent sized gift shop promenade, but only two working restaurants (with decent if not wonderful food) when I visited, the rest were closed down and empty. Supposedly there's work afoot to bring back more of the ship, but that remains to be seen. So all-in-all, a good experience, so long as you know what you are getting for your money.
Fun and historic. Just exploring the ship is a blast. I wouldn't suggest sleeping there, however. The walls are super thin. If you're gonna party, come to your room late and pass out, I guess it would be fine. But I go to bed early even on my wildest nights. We were next to a family with kids that stayed up late and watched TV. The walls really are thin. That's the Hotel's #1 complaint (I found out later in conversation with the staff), and you will hear other guests complain about it during the day. The rooms are too expensive for that (in my opinion). But I guess you're paying more for the experience.