The move followed the government's measures to stimulate tourism for four months from July to October this year.
The list of museums under the Fine Arts Department are as follows:
Bangkok National Museum, Bangkok
The National Gallery of Thailand, Bangkok
National Museum of Royal Barges, Bangkok
Kanchanaphisek National Museum, Pathumthani
Pranakornkeeree National Museum, Phetchaburi
Ratchaburi National Museum, Ratchaburi
Au Thong National Museum, Suphan Buri
National Museum of Thai Rice Farmers, Suphan Buri
Suphanburi National Museum, Suphan Buri
Phra Pathom Chedi National Museum, Nakhon Pathom
Bankao National Museum, Kanchanaburi
Chantharakasem National Museum, Phra Nakhon Si Ayutthaya
Chao Sam Phraya National Museum, Phra Nakhon Si Ayutthaya
Inburi National Museum, Singburi
Somdet Phra Narai National Museum, Lopburi
Chainatmuni National Museum, Chai Nat Prachin Buri National Museum, Prachin Buri
The National Maritime Museum, Chanthaburi
Ramkhamhaeng National Museum, Sukhothai
Sawakhavoranayok National Museum, Sukhothai
Kamphaeng Phet National Museum, Kamphaeng Phet
Phra Buddha Chinnarat National Museum, Phitsanulok
Nan National Museum, Nan
Chiang Mai National Museum, Chiang Mai
Hariphunchai National Museum, Lamphun
Chiang Saen National Museum, Chiang Rai
Khon Kaen National Museum, Khon Kaen
Ban Chiang National Museum, Udon Thani
Roi Et National Museum, Roi Et
Ubon Ratchathani National Museum, Ubon Ratchathani
Phimai National Museum, Nakhon Ratchasima
Maha Viravong National Museum, Nakhon Ratchasima
Surin National Museum, Surin
Songkhla National Museum, Songkhla
Satun National Museum, Satun
Nakhon Si Thammarat National Museum, Nakhon Si Thammarat
Chaiya National Museum, Surat Thani
Chumphon National Museum, Chumphon
Thalang National Museum, Phuket.