Boltshauser & Garbizu Collar Talk – Concéntrico Festival 2026 18.06.2026 Boltshauser & Garbizu Collar Talk – Concéntrico Festival 2026 Conversation with the authors about Terroir, a proposal built with rammed earth and reused barrels that explores the relationship between architecture, climate and wine-growing landscapes.Plaza de Santiago, 19:30h Conversation with the authors about Terroir, a proposal built with rammed earth and reused barrels that explores the relationship between architecture, climate and wine-growing landscapes.Plaza de Santiago, 19:30h