evidence: Named after the magnificent 11th century Khmer sanctuary known to Cambodians as Preah Vihear, Thailand’s Khao Phra Wihan National Park covers a forested escarpment with soaring views into remote Northern Cambodia. At the time of writing, the ruins remain off limits from the Thai side, but you can get enticingly close. Built in dramatic fashion to honour the Hindu god Shiva some 1,100 years ago, Prasat Khao Phra Wihan (also spelt Viharn; we’re using the Thai name for this listing) is situated at the crest of a rugged 500-metre-high slope amid the Dandrek mountains. A half-kilometre west of the Cambodian-controlled ruins, Pha Mo E Daeng cliff is part of Thailand. [...] Khao Phra Wihan National Park is located at the southern end of Highway 221 in Si Saket province, Northeast Thailand. There is no public transport to the park. From Si Saket town or Ubon Ratchathani, you could catch an hourly local bus to Kantharalak, which is the nearest city at over 30 km north of headquarters. In Kantharalak it’s possible to arrange a motorbike taxi or perhaps a tuk tuk or car to the park, though this could be challenging as English is not widely spoken here.