Fort of Mosqueiro - Credit: Wikimedia Commons
The Fort of Mosqueiro, also known as the Redoubt of Mosqueiro (), is one of a group of fortifications in Portugal that made up the Lines of Torres Vedras, which were designed to protect the capital, Lisbon, from possible invasion by French troops during the Peninsular War. It is situated near Bucelas in the Loures municipality in the Lisbon District of Portugal. Read more on Wikipedia
Source: en.wikipedia.org