Tatev Monastery and Vorotan Gorge by Jarek Pokrzywnicki
One of best preserved monasteries in Armenia. Additional attraction is the famous "Wings of Tatev" - the longest cable car in the world (be prepared to long queues in the high season).
Access to the monastery is by chartered taxi (from Goris or Sisian, expect to pay around 8.000 AMR for return trip). Tatev is magnificently situated in the mountains, it is also one of the most visited sites in Armenia, so it is better to avoid weekends, especially during holiday months.