Carl Weidemeyer is known above all as the architect of the San Materno Theatre in Ascona, which has been preserved in its entirety to this day, also thanks to the exemplary renovation completed in 2009 under the direction of the architect Guido Tallone, who has preserved all the valuable details of the building (e.g. its surprising internal polychromy). But Weidemeyer is also and above all a versatile and productive artist: painter, sculptor, printmaker, illustrator, graphic artist, designer of toys, furniture and other objects. A rich testimony to his work can be found in the Museo Comunale d'Arte Moderna in Ascona, which acquired the Carl Weidemeyer collection in 1995, a comprehensive body of paintings, graphic works, drawings, sketches, plans, architectural designs and written documents with a total of over 3300 elements.