Birr is a municipality in the Swiss canton of Aargau and the capital of Brugg. The village lies halfway between Lenzburg and Brugg. Birr ha…Birr is a municipality in the Swiss canton of Aargau and the capital of Brugg. The village lies halfway between Lenzburg and Brugg. Birr has grown with its neighbour Lupfig into a conurbation. Birr is known as one of the places where the Swiss educator Johann Heinrich Pestalozzi established new standards in education. His gravesite in Birr is listed as a heritage site of national significance.