Khmer Empire

"For Several Centuries Angkor, Was The Centre Of The Khmer Kingdom. With Impressive Monuments, Several Different Ancient Urban Plans And Large Water Reservoirs, The Site Is A Unique Concentration Of Features Testifying To An Exceptional Civilization." (Ouv)

"Under Khmer And Lavo Control, The Khmer People Built Various Monuments In The City, Several Of Which Still Stand In The Sukhothai Historical Park. They Include The Ta Pha Daeng Shrine, Wat Phra Phai Luang, And Wat Si Sawai" (Wiki)

"The Temple Complex Of Vat Phou Bears Exceptional Testimony To The Cultures Of South-East Asia, And In Particular To The Khmer Empire Which Dominated The Region In The 10th–14th Centuries." (Ouv)

"The Site Of The Temple And Its Environment Today Represent A Particularly Significant Example Of The Khmer Genius For Adapting Monuments To Their Environment" (Ab Ev) & " An Ancient Khmer Temple Built During The Period Of The Khmer Empire" (Wiki)

Ayutthaya Conquered Angkor

Ta Phraya Np, A Part Of Dong Phayayen, Has Khmer Empire Temple Ruin Name Prasat Khao Lon

The Capital City Of The First Empire And First Khmer State (Ab Ev)

"It Had Inaugurated A Centuries-Long Phase Of Stone Temple Construction Across The Khmer Empire" (Ab Ev)

"During This Phase (C. 11th–13th Century Ce), Shaivism Was A Great Influence In Si Thep At Angkorian Times, ...Prang Song Phi Nong And Prang Sri Thep Were Built In The 11th To 12th Centuries." (Wiki)
See En.Wikipedia.Org