Hi Joseph, Tours typically last anywhere from 45 minutes to 2 hours. Last entry is at 3pm and the museum closes at 5pm. Both tours are self-guided journeys. Magical History tour guests get an in-depth history of our philosophy, museum, and building so it's great for history buffs. Secret Door Tour guests receive a short briefing about how the secret doors were created and what to look for as then head out on their adventure.
I was there for clise to three hours and never got bored.
The only difference I saw per tour is the check off list of items to find. Go for the cheapest because you'll see the same rooms no matter which tour you purchase.
The door tour is the way to go, but try groupon for cheaper tickets. I'd say at least 1.5 hours.
To the owner, are people on the history tour allowed to find doors?
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