Grand Place, Brussels, Belgium.
The building in front is the Town Hall constructed in the XV century. It was constructed gradually. Hence the asymmetry. The oldest part is the longer left wing. The right wing as well as the tower were constructed thirty years later. The whole place is surrounded by very representative buildings financed by craft guilds. The Grand Place is on the UNESCO list of World Heritage Sites.
If you visit Brussels, be aware that this city has in fact two centers. The first is the traditional one, and this is the Grand Place. The other one is the Robert Schumann place, with the famous Berlaymont building – the HQ of the European Commission.