The real Mt. Sinai is in Arabia, just as the Bible says. Ron Wyatt believed that, and found it in 1980. The videos I've seen of it so far have been a nice, but this video is amazing for its quality:
In addition to the real Mt. Sinai, with its obviously burned rocks on top, you can see the split rock of Horeb, some foundation stones for various buildings (sanctuary?) near the mountain, and the altar that Aaron built, with even the Egyptian-looking cows drawn on it still visible after all these years.
Of course the world doesn't want to believe God's holy words in the Bible, so these spots are ignored by most everybody. Maybe that was God's plan, in order to preserve them for the end times to bolster our faith