I came for a quick panoramic view of the city from the top, which was extremely nice, and instead…read morefound myself lingering to check out the delightful little museum housed here, all for the great price of only 5 Euro. The audio guide is included in the price, and you will want to get it as there are not many signs here, and the history is interesting. There is an English audio guide. You aren't forced to listen to everything, as you can just type in the buttons for what you want to hear. The staff were extremely friendly and encouraged me to try on the pieces of armour they had in the main floor, I had thought they were only for kids to check out and had passed by.
The Porte de Hal was built in 1381 as one of six gateways which were part of the second set of defensive walls enclosing Brussels. This gate only survived because it was used as a prison, then later as a customs house, a grain storage, and even a Lutheran church. Between 1868 and 1870, the building was restored to what you see today. They took the medieval tower and touched it up with some romantic Neo Gothic extras. The entrance facing Saint- Gilles, is closest to the original appearance, and the entrance facing Brussels has the updated touches including the circular tower with a conical roof and turrets. It is this tower that houses the beautiful spiral stair case that you climb to reach the different levels of the museum and the ultimate panoramic view from the top. I would have just been happy to see the view and staircase, the rest was bonus.
The other floors of the museum have a unique collection on information regarding the history of Brussels fortification system, the role of the trade guilds in Brussels (interesting after seeing all the Guild Houses in the Grand Place), and some armour including the parade armour of Archduke Albert of Austria. This was fascinating as it included the actual preserved hides of Albert's horses. You could even see the bullet wound that had killed one of the horses in battle. Per the audio guide these are some of the best preserved horses in the world.
Whether you are a history buff or not, there is a bit of something here for everyone. Definitely a pleasant surprise.