Petra, Jordan - Ten Amazing Facts - as part of the travel series by GeoBeats.
10 - Inhabited by Nabataeans over 2500 years ago.
9 - City was carved into the walls of a desert canyon.
8 - The Treasury, its most famous structure, is estimated to be 2000 years old.
7 - Nabataeans prospered by controlling water supply in region.
6 - They used mechanisms like dams to store and sell water from flash floods.
5 - Spice trade further fueled Petra's prosperity in the first century BC.
4 - An earthquake in 4th century destroyed these water management systems.
3 - Change in trade routes led to Petra's eventual decline.
2 - The city was abandoned in 1189.
1 - Estimated 30,000 people lived in Petra at its peak.