Astronomy, may be the only area of Physical Science that mesmerizes the general public. Many people are more and more systematically involved with Astronomy, and are often coming up with original scientific work. Today in Greece there are a lot of amateur astronomy clubs, which all together count thousands of members and two public observatories. These organizations are developing intense educational activity through numerous events that are very popular.

This diploma thesis has as its purpose to present a building complex which serves as well as promotes science and arts, while as a building programme is revolved around a public observatory.

The goal of this project, along with the economic and touristic development of the island, with the increase in traffic, is to bring the public of Salamis and Western Attica close to astronomy and to contribute to the expansion and preservation of a community of amateur astronomers on the island.

Taking into account the morphology of the proposed site and always serving the concept “view” as an idea and the different views of the same image, a building complex on the hill known as "Mills" in Salamina is proposed. The composition proposed consists of five parts: the "plateau", the "axis", the "gap", the "barrier" and the "clearing".

However, a basic prerequisite is appropriate staffing with a lively, energetic and active crew. A role that the annex of the Society of Astronomy and Space in Salamina covers.