Often cited as the best reason to visit the Museum of Siam in the first place, the traditional clothing gallery includes a diverse and wide range of exhibits. Diving deep into the traditional clothing worn by citizens of different regions in Thailand, the museum also showcases the costumes and headdresses that were donned for theatrical performances as well as special cultural ceremonies. Documenting the evolution of Thai dress throughout the ages, visitors can also witness how dance and theatre costumes have changed over the years via the gallery's multimedia reels. The exhibits in this area include not only conventional instruments but also ancient items used in local festivals and religious occasions.