This time of the year we have lots of tourists visiting Amsterdam and they all want to have a look in the museums. This queue is at the "Anne Frank House" where a whole new entrance is built next to the house to give the visitors a better welcome.
This is the original house at the streetside where Mister Otto Frank had his trading company. The family later got into hiding in the house behind this one, the so called "Achterhuis".
And the Wester-tower which Anne always heard ringing.
Look here for the website with a virtual tour through the house.