‘It’s simply mesmerising’ — a Teotihuacán stone mask owned by Pierre Matisse

Five groundbreaking self-portraits by women

Decoding the secrets of Casa Mollino

Alberto Zanetti

Peggy Guggenheim and the ghosts of the unfinished palazzo

Judith Mackrell

Collecting guide: Spanish colonial art

Art cities: How a rich gallery sector and a growing collector base have boosted Mexico City