Senne (river) in the context of "Scheldt"

Brussels, officially the Brussels-Capital Region, is a region of Belgium comprising 19 municipalities, including the City of Brussels, which is the capital of Belgium. The Brussels-Capital Region is located in the central portion of the country. It is a part of both the French Community of Belgium and the Flemish Community, and is separate from the Flemish Region (Flanders), within which it forms an enclave, and the Walloon Region (Wallonia), located less than 4 kilometres (2.5 mi) to the south.

Brussels grew from a small rural settlement on the river Senne to become an important city-region in Europe. Since the end of the Second World War, it has been a major centre for international politics and home to numerous international organisations, politicians, diplomats and civil servants. Brussels is the de facto capital of the European Union, as it hosts a number of principal EU institutions, including its administrative-legislative, executive-political, and legislative branches (though the judicial branch is located in Luxembourg, and the European Parliament meets for a minority of the year in Strasbourg). Because of this, its name is sometimes used metonymically to describe the EU and its institutions. The secretariat of the Benelux and the headquarters of NATO are also located in Brussels.

The Dyle (French: [dil]; Dutch: Dijle [ˈdɛilə]) is a river in central Belgium, left tributary of the Rupel. It is 86 kilometres (53 mi) long. It flows through the Belgian provinces of Walloon Brabant, Flemish Brabant and Antwerp. Its source is in Houtain-le-Val, near Nivelles in Walloon Brabant.

The most important cities along the Dyle are (starting from the source) Ottignies, Wavre, Leuven and Mechelen, the last of which is often called the 'Dijlestad' (Dyle City). The main tributaries of the Dyle are the rivers Demer (in Werchter, Rotselaar municipality), and the Zenne at the Zennegat, on the farthest outskirts of Mechelen, where the canal Leuven-Mechelen also connects. A few hundred metres downstream, the confluence of the Dyle and the Nete at Rumst forms the river Rupel, which 12 kilometres (7 mi) further comes into the Scheldt on which the Antwerp seaport is located.

The Woluwe (French: [wolywe]; Dutch: [ˈʋoːlyu.ə]) is a stream that flows through several municipalities in the south-east and east of Brussels, Belgium, and is a right tributary of the Senne in Vilvoorde. The Kleine (little) Maalbeek is a tributary of the Woluwe in Kraainem. Many ponds formed along the stream over time, among which the Mellaerts Ponds still exist. The valley of the Woluwe crosses the municipalities of Auderghem, Watermael-Boitsfort, Woluwe-Saint-Pierre, Woluwe-Saint-Lambert, Kraainem, Zaventem, Machelen and Vilvoorde.

The towns of Woluwe-Saint-Pierre, Woluwe-Saint-Lambert and Sint-Stevens-Woluwe derive their name from it.

The Maelbeek (French, pronounced [malbek, -bɛk] ; former Dutch spelling) or Maalbeek (modern Dutch, pronounced [ˈmaːlbeːk]) is a stream that flows through several municipalities in Brussels, Belgium, including Etterbeek, Ixelles, Saint-Josse-ten-Noode, Schaerbeek. It is a tributary of the Senne, which it joins up in Schaerbeek, from its source located to the south near La Cambre Abbey. Maelbeek/Maalbeek metro station is located in the central area of this Maalbeek valley.

The name Maalbeek, meaning "mill brook", comes from the Dutch words beek (meaning "brook") and maal (meaning "to mill"). Molenbeek has a similar derivation. The stream was vaulted in 1872, at which time there were 58 ponds along it. Nowadays, only six are left: the ponds of La Cambre Abbey; of Ixelles (two); of Leopold Park; of Marie-Louise Square; and of Josaphat Park.