Planning a quick trip for April, arriving early and leaving late, more interested in food and sights than museums.
Which places should a budget tourist visit in 1 day in Brussels
Accepted answer
Just stick to the Grand Place and maybe hit a museum on the first Sunday of the month for free entry!! You can rent a Villo! or Blue-bike for €3.50 to move around fast. The Musical Instruments Museum is great because the audio guide lets you hear the sounds of the instruments

Replies
Maybe check out Goupil le Fol too. It is a unique bar and I highly recommend it for visitors.
Atomium and Mini-Europe area is better ! Atomium + Mini-Europe combined ticket costs €35 and includes the Design Museum Brussels .
The Palais de Justice is a massive, impressive landmark worth seeing.
Atomium is way out of the center so u need the metro ! Thanks for the tip tho !