Rising to a height of 2,286m, Mount Sinai is held to be the place where Musa (upon him be peace) received the 10 Commandments. At the summit is a 12th century mosque (masjid) and a small chapel. Note that some archaeologists regard Jabal Al Lawz in Madyan, Saudi Arabia to be the real Mount Sinai.
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Video from YouTube documenting a climb to the summit (contains music)