Are there any restrictions for children at Madame Tussauds Washington DC.? Madame Tussauds Washington DC. is suitable for all ages. Related articles What items cannot be taken into Madame Tussauds? Do I have to pay for an under 3? How long does it take to go around Madame Tussauds? Can I change the name on my booking? How old must you be to enter the attraction unaccompanied?