Hey,
The goal of this post is to give you a short overview of the top things to do and to visit Brussels, Belgium before or after your Good Beer Spa session of course.
Must-do beer experiences in Brussels
http://wheretobeer.com/index.php/beer-tourism/brussels
Unconventional sightseeings of Brussels you can find here:
https://www.atlasobscura.com/things-to-do/brussels-belgium/places
More conventional things to visit in Brussels.