Khao Phra Viharn National Park
Si Sa Ket

Baan Pluang Castle
Surin

Chulabhorn Dam / Nam Phrom Dam
Chaiyaphum

Ban Song Puey Archeological Site
Yasothon

Huai Rai Reservoir
Nong Bua Lam Phu

Huai Khi Lek Reservoir
Mukdahan

Phra That Sri Mongkol
Sakon Nakhon

Ku Mahathat (Prang Ku Ban Kwao)
Maha Sarakham

None Don Klang Archeological Site (Ban Kud Kwang Soy)
Nong Bua Lam Phu

Bueng Kluea
Roi Et

Don Tuan Khmer Ruins.
Si Sa Ket

Tamnaksai Khmer Ruins (Tamchan Khmer Ruins)
Si Sa Ket

Khao Phra Viharn (Preah Vihear) Sanctuary
Si Sa Ket

Don Tuan Khmer Ruins
Si Sa Ket

Huay Tap Tan Khmer Ruins or Ban Prasart Khmer Ruins
Si Sa Ket