An Ancient Fortress on the Island

Deep inside Siberia there is a lake, one of thousands others. And in the middle of this lake there is a small island. And on this island people have found an ancient fortress, which is dated more than 1500 years old. Excavations are needed in order to reveal all its view for visitors, but even now from the air its a nice site in different times of the year. First part of photos were made during short Siberian summer:
White Wall of Moscow

Centuries ago Moscow was white. There were magnificent white walls around the city with white towers in the corners. Nowadays the Moscow Kremlin is Red and the remains of the white city is buried under the ground. Sometimes during the excavations or construction works in Moscow downtown the remains of these white walls can be found. Like this time, while building a multi-stored underground parking in Moscow downtime they use the old remains of something that could be of great interest for archeology as a good basis for the modern steel structures.
