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Just inside the entrance to the park. As you can witness inside Petra, not all donkeys, horses and camels are treated right. A few are overworked, carrying overweight tourist or being excessively whipped. The Brooke charity educates owners about the treatment of equestrian working animals and treats the animals for free. The clinic is happy to tell you about conditions for working animals in Jordan. You can give a donation to the clinic.
The entrance to Petra is a long, winding sandstone canyon (about 2 km). There are minor carvings spotted here and there throughout the Siq, but the most impressive sights are the colorful and unusual sandstone patterns in the rock walls. There are also remains of terracotta pipes built into the sides of the canyon that were used in Roman times to carry water.
Al-Khazneh in Arabic
Upon exiting the Siq, visitors can view this jaw-dropping grandeur. Be sure to note the urn atop the Treasury structure, it has been rumored that the urn contained a Pharaoh's hidden treasure, and the urn bears the bullet pock marks where Bedouin travellers throughout the years have tested the theory. Get there when the park opens at 06:00 or 06:30 (depending on the season) and you may have the Treasury all to yourself or with fewer than 5-10 people around and no vendors.
Past the next bend is this part also sometimes called outer Siq, a large canyon lined with the facades of various tombs.
At the end of the Street of Facades is the 7000-seat Roman Theater. The theater was created by the Nabateans but later enlarged by the Romans. It is still used for occasional performances.
On the side of the valley opposite the Roman Theater and a short walk up the hill, are the tombs. The name was given because they are quite grand in scale compared to the others in the area, but it is unclear for whom the tombs were built.