Khao Phra Viharn National Park
Si Sa Ket

Phra That Phanom
Nakhon Phanom

Bueng Phlan Chai
Roi Et

Ban Song Puey Archeological Site
Yasothon

Huai Rai Reservoir
Nong Bua Lam Phu

Ku Mahathat (Prang Ku Ban Kwao)
Maha Sarakham

Tamnaksai Khmer Ruins (Tamchan Khmer Ruins)
Si Sa Ket

Phra That Sri Mongkol
Sakon Nakhon

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

Don Tuan Khmer Ruins
Si Sa Ket

Khao Phra Viharn (Preah Vihear) Sanctuary
Si Sa Ket

Phutthasathan Phu Po
Kalasin

Phu Langka National Park
Nakhon Phanom

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

Lum Praplerng Dam
Nakhon Ratchasima