Things to do in Thailand

• Grand PalaceMuseum · Bangkok
• Khao Yai National ParkPark · Nakhon Nayok
• Ayutthaya Historical ParkLandmark · Phra Nakhon Si Ayutthaya
• Ban ChiangLandmark · Sawang Daen Din
• Kaeng Krachan National ParkPark
• Emerald BuddhaStatue · Bangkok

• Grand PalaceBangkok · On the map
• Bangkok National MuseumBangkok · On the map
• Vimanmek MansionBangkok · On the map
• Bang Pa-In Royal PalaceBang Pa-in · On the map
• Bangkok Art and Culture CentreBangkok · On the map

• Ayutthaya Historical ParkWorld HeritageLandmark · Phra Nakhon Si Ayutthaya · On the map
• Ban ChiangWorld HeritageLandmark · Sawang Daen Din · On the map
• Emerald BuddhaStatue · Bangkok · On the map
• Thungyai Naresuan Wildlife SanctuaryWorld HeritageLandmark · On the map
• Great Buddha of ThailandMonument · Wiset Chaichan · On the map
• Golden BuddhaStatue · Bangkok · On the map
• Democracy MonumentMonument · Bangkok · On the map
• Si Thep historical parkWorld HeritageLandmark · Wichian Buri · On the map
• Dong Phayayen-Khao Yai Forest ComplexWorld HeritageLandmark · On the map
• Wat Phra MahathatWorld HeritageLandmark · Nakhon Si Thammarat · On the map
• Sanam LuangSquare · Bangkok · On the map
• Phuket Giant BuddhaMonument · Ban Chalong · On the map
• Victory MonumentMonument · Bangkok · On the map
• Historic Town of Sukhothai and Associated Historic TownsWorld HeritageLandmark · Ban Na · On the map

• Khao Yai National ParkPark · Nakhon Nayok · On the map
• Kaeng Krachan National ParkPark · On the map
• Khao Sam Roi Yot National ParkPark · Sam Roi Yot · On the map
• Khao SokPark · Takua Pa · On the map
• Erawan National ParkPark · On the map
• Lumphini ParkPark · Bangkok · On the map
• Mu Ko Ang Thong National ParkPark · On the map
• Ao Phang Nga National ParkPark · On the map
• Dusit ZooZoo or aquarium · Bangkok · On the map
• Mu Ko Surin National ParkPark · On the map
• Sanctuary of TruthPark · Pattaya · On the map
• Kui Buri National ParkPark · On the map
• Tarutao National ParkPark · On the map
• Doi Inthanon National ParkPark · On the map
• Ta Phraya National ParkPark · On the map
• Khao Phra Wihan National ParkPark · Kantharalak · On the map
• Chiang Mai ZooZoo or aquarium · Chiang Mai · On the map
• Doi Khun Tan National ParkPark · On the map

• Dusit PalacePalace · Bangkok · On the map
• Chitralada Royal VillaPalace · Bangkok · On the map
• Assumption CathedralCathedral · Bangkok · On the map

• Grand Palace: Preecha.MJ, CC BY-SA 4.0
• Khao Yai National Park: Jtri, CC BY-SA 3.0
• Ayutthaya Historical Park: User:Hdamm, CC BY 2.0
• Ban Chiang: User:Mattes, Public domain
• Kaeng Krachan National Park: JJ Harrison, CC BY-SA 3.0
• Emerald Buddha: Mastertongapollo, CC BY-SA 4.0
• Thungyai Naresuan Wildlife Sanctuary: Altaileopard, CC0
• Khao Sam Roi Yot National Park: Jérémy Toma, CC BY-SA 4.0
• Khao Sok: Vyacheslav Argenberg, CC BY 4.0
• Bangkok National Museum: This Photo was taken by Supanut Arunoprayote ., CC BY 4.0
• Erawan National Park: Nina R, CC BY 2.0
• Great Buddha of Thailand: Chainwit., CC BY 4.0
• Lumphini Park: Chainwit., CC BY 4.0
• Golden Buddha: Kushal Das, CC BY-SA 3.0
• Democracy Monument: Nawit science, CC BY-SA 4.0
• Si Thep historical park: Ddalbiez, CC BY-SA 3.0
• Dong Phayayen-Khao Yai Forest Complex: Jtri, CC BY-SA 3.0
• Mu Ko Ang Thong National Park: Vyacheslav Argenberg, CC BY 4.0
• Ao Phang Nga National Park: Diego Delso, CC BY-SA 3.0
• Wat Phra Mahathat: Suwannee.payne, CC BY-SA 3.0
• Vimanmek Mansion: Gisling, CC BY-SA 3.0
• Dusit Palace: Ahoerstemeier, CC BY-SA 3.0
• Sanam Luang: Adbar, CC BY-SA 3.0
• Chitralada Royal Villa: Rickbrown9, Public domain
• Assumption Cathedral: Chainwit., CC BY-SA 4.0
• Phuket Giant Buddha: CEphoto, Uwe Aranas, CC BY-SA 4.0
• Victory Monument: KungDekZa, CC BY-SA 3.0
• Historic Town of Sukhothai and Associated Historic Towns: Ahoerstemeier, CC BY-SA 3.0
• Dusit Zoo: Ahoerstemeier, CC BY-SA 3.0
• Mu Ko Surin National Park: User:Manop, CC BY 2.5
• Sanctuary of Truth: Luka Krstulović, CC BY-SA 3.0
• Kui Buri National Park: Mingkipkee, CC BY-SA 4.0
• Tarutao National Park: Vyacheslav Argenberg, CC BY 4.0
• Doi Inthanon National Park: Vyacheslav Argenberg, CC BY 4.0
• Bang Pa-In Royal Palace: Chainwit., CC BY 4.0
• Ta Phraya National Park: Ddalbiez, CC BY-SA 3.0
• Khao Phra Wihan National Park: Pawyilee, CC BY-SA 3.0
• Bangkok Art and Culture Centre: Cush2k, CC BY-SA 3.0
• Chiang Mai Zoo: This user loves Krittaya., Public domain
• Doi Khun Tan National Park: Chit130512, CC BY-SA 3.0

Pictures from Wikimedia Commons, through each place’s Wikidata entry.

• The list comes from Wikidata (CC0): museums, castles, palaces, cathedrals, parks, gardens, zoos, squares, monuments and other landmarks with their own articles in at least three Wikipedias, the best known first.
• Each place counts for the city it lies closest to by size and distance; the country lists its best known.
• There are no opening hours, tickets or pictures here: the Wikipedia article for each has them.