The Müllerhaus (Miller House) is the most beautiful and stately mansion in the canton of Aargau, built in the 18th Century at Lenzburg Bleichenrain.

the Miller-House houses a cultural foundation established by the Lenzburg doctor Hans Müller and his sister Gertrud (Trudi) Müller.

It houses the House of Literature Aargau, which carries out regular events.