The Mausoleum of the Broken Triangle is an archaeological landmark located in the heart of the Wadi Musa desert, a short distance from the famous Petra Treasury. Historians believe that this magnificent mausoleum dates back to the year 228 BC. This mausoleum is distinguished by its beautiful square facade, the marble columns surrounding it, and the huge doors. This is one of the lesser known landmarks of Petra, so you won't find many people around it when you visit it.