Upvote:-2
Is think this is it: http://www.montdesarts.com/
And on this page: http://www.montdesarts.com/en/contact/Brussels-Card ... it says this:
For more information on sales outlets and prices, go to: https://visit.brussels/en/sites/brusselscard/
It looks like that the Brussels-card give you access to 40 museums, but it doesn't say anything about Kunstberg (which is wierd, since it's mentioned on Kunstbergs website).
Upvote:3
Mont des Arts/Kunstberg is an area containing many museums and other attractions. Those museums/galleries/etc generally require tickets, but the flower garden is a publicly-accessible space with no tickets or entry fees.