Prehistoric Rock Painting in Thailand

An eponymous long cliff named Pha Taem is the centrepiece of this awesome but unheralded (now, a Thailand's national park) gem 

All murals were created with a clear intent to record the feelings of a group of people, in a specific place, at a specific time. 

From the top you get a bird's-eye view across the Mekong into Laos, and steeply down below a trail passes prehistoric rock paintings dating to at least 1,000 BC

Ba Taem, about 2 hours drive west from Ubon Ratchathani city, covers an area of 340 sq kms (131 sq miles). The cliffs and rock paintings are near the park visitor centers. Unfortunately, the clearing of the path for viewing the murals has exposed the rock to the elements, resulting in some fading of the images over the years since the park was established, but they're still impressive.