UNESCO World Heritage-listed 12th Century Crusader castle of Krak des Chevaliers
Fairy-tale romantic and implausibly well-preserved, this castle is a must for all visitors to Syria. See the 100-foot thick curtain wall and the seven enormous guard towers, and it comes as no surprise to learn this was the largest Crusader fortress in the Holy Land, and that it proved a 12th century stronghold. Sieges were time and again unsuccessful, with the garrison withstanding attack. And so it stands today, virtually untouched and unchanged in centuries, perched picturesquely in the Horns Gap of the Jebel Ansariyya Mountains, looking out onto nearby villages and Lebanon to the south.