Sightseeing in The Netherlands

In the last couple of weeks I visited Maastricht, The Hague, Rotterdam and various other cities. There is quite some nice towns in The Netherlands but Dutch people don't like to travel around for some reason. I don't understand why.

Exploring and seeing new things such as castles, new cities and forts I think is amazing.

A photo of Castle heeswijk:

A photo of Maastricht main square:

A photo of dutch beach at Noordwijk: