The building at Via Gioacchino Rossini 3 was built to a design by Innocenzo Odescalchi Pietro Ortelland i, who also oversaw the decorations and interiors, between 1871 and 1887. In full eclectic style, it was originally the residence of patrons (including Alexander Iolas) and artists of 19th‑ and 20th‑century Italy – it is in fact also known as the “house of artists”. The romantic courtyard, with its monolithic Candoglia marble columns, Bramantesque candelabra, and other cylindrical columns bearing different capitals and supporting arches, has hosted generations of collectors, artists, and galleries, preserving an atmosphere of cultural continuity and artistic exchange.