If I visit for last admission, how long will I have in the attraction? You will have over an hour to visit after our closure. Related articles Will I have to queue to get into Madame Tussauds Las Vegas? When is the best time to visit Madame Tussauds Las Vegas for a quieter experience? How old must you be to enter the attraction unaccompanied? Where is Madame Tussauds Las Vegas Located? How do I buy tickets for Madame Tussauds Las Vegas?