Aksay customs outpost - Credit: Wikimedia Commons
The Aksay customs outpost is an earthen fortification construction situated in the Aksay, Rostov region of Russia. It is located on the territory of the former Don Noble estate at the mouth of Small Log Beam. The Czar's outpost was originally built on this territory, followed by a customs post. Erected in the second half of the 18th century, the building is part of the Dmitryi Rostovskiy fortress complex maintained by the military-historical Museum of Aksay. Read more on Wikipedia
Source: en.wikipedia.org