Global Art Tourism Market Size, Share & Demand Report By Product Type (Museums & Galleries, Art Events & Festivals, Creative Participation, Art Heritage & Architecture, Urban & Public Art Trails, Art-Integrated Hospitality & Themed Experiences, B2B / Professional Art Travel), By Application (International Travel, Educational Trips, Corporate Cultural Programs, Individual Premium Travel, Workshops & Residencies), By Distribution Channel & Region Forecasts, 2025–2030