It's not an old wall (including the Berlin walls), since it's quite modern concrete material. It's not a famous mural because those usually extend all the way to the floor.

The gaps or glass in the wall is lined up with the pavement tiles, but the pavement tiles look less more than 0.5 meter. I don't think it's a metric country.

Not enough gum for a (train)station, so maybe a museum or a bank building. The narrow windows would work well for bank security.
(Banks have always had the most impressive façades, since that is all they are.)

Edit: EU buildings in Brussels would fit that just as well as banks.