Zapovidnyk Tustan was a Medieval fortress-city from the 9th—16th centuries, an Old Rus cliff-side defensive complex. Its remains are located in the Lviv oblast of Ukraine, near the village of Urych. This unique monument of history, archeology, architecture, and nature is situated amidst the woods of Pidhorodtsi Forestry and is part of the Tustan Reserve. (Wikipedia)
The wooden fortress is no longer there but the site remains a great place to learn the history and imagine the past, with the help of its augmented reality app (iOS | Android). With the recently added wooden trails, it is also an excellent place for a quick trek to enjoy the views of stunning rock formation and beautiful forest scenery around.