Must see places while going through Belgium? [closed]

Bruges/Brugge is a must see.

As you come from Netherlands, you won't go "Wow" on the bike friendly town. But there are windmills, a beautiful belfry with its carillon that you can visit. There are many canals in this Venice of the North. There are also a chocolate museum and a diamond museum (only the former offers samples to visitors). You can even see the relic of the Holy Blood and the building of the bourse, the first stock exchange in the world.

In Belgium you can stay in a castle

I guess you will be traveling by train. This way you are limited to Antwerp, Brussels, Gent and Brugge. Let me start with some tips from my home town Antwerp.

1. The ruien. Antwerp has a century old sewage system which is open to visitors. A visit comprises of two walks. First you'll go down in to the sewer system, where the trip start with a short boat trip, then you walk underneath the city, while a guide explains where you are and some other interesting stories. The second part is where you walk the same tour, but now from outside.
2. The Vlaaykens gang This a small road right in the center of Antwerp, where you'll think you are in medieval times.
3. De Pelgrom/Poorterswoning. De poorterswoning is a very small but remarkable museum. It only opens in the weekend. You'll be visiting a house of merchant from the past. In the cellar of this museum you'll find a pub call De Pelgrom.

Things to do in Brussels

1. Visit the atomium
2. Visit Manneke pis (the eifel tower of Brussels).
3. Visit Jeanneke pis The less known sister of Manneke pis.
4. Visit the sunday market in Anderlecht. This is of the beaten track. You'll find your self in a different atmosphere with a multitude of cultures. Google maps. Metro: Clemanceau
5. Visit the natural science museum. With an impressive collection (of which some impressive dinosaurs skeletons).

If you are not limited by traveling by train, others Belgian beauties can be found in:

1. Lier: With its Wonder clock by Louis Zimmer
2. Westmalle Brewery
3. Boullion Here you will find your castle.
4. Dinant
5. Hasselt and it surroundings Of which Alden biesen is worth the detour

And last but not least, Belgium has its Ardennes

A very interesting detour might be Baarle Hertog/Baarle Nassau. Here you'll witness a bizar case of borders between two countries Only here you can walk in a strait line an cross the border between two countries multiple times.