This famous wax statues museum has a branch on Dam Square. It is one of the busiest attractions in Amsterdam.
In this museum you can see celebrities (royals, sports heroes, famous artists, etc.) made out of wax.

Address:
Dam 20, Amsterdam
Web:
http://www.madametussauds.com/Amsterdam/en

Opening hours:
10-7 every day, except King's Day (April 27)

EXCEPTIONS:
October 17 - November 1 2015 inclusive
Open from 09:30 - 8 pm (Last admission 7 pm)

December 5 2015
Open from 10 am - 5:30 pm (Last admission at 4:30)

December 19 - January 3 2016 inclusive
Open from 09:30 am - 8 pm (Last admission at 7pm)

December 24 + 25 2015
Open from 09:30 am - 5:30 pm (Last admission at 4:30 pm)

December 31 2015
Open from 09:30 am - 5:30 (Last admission at 4:30)

New Years Day 2016
Open from 11 am - 8 pm (Last admission at 7 pm)