Old Royal Palace built
1836 CE.
Shown on the map at 37.975°, 23.737°.
The Old Royal Palace (Greek: Παλαιά Ανάκτορα, romanized: Palaiá Anáktora) is the first royal palace of modern Greece. It is a neoclassical building situated at the heart of modern Athens, facing onto Syntagma Square. It was constructed between 1836 and 1843 to serve as the main residence of the Greek royal family and has been the seat of the Parliament since 1929. In 1836, King Otto I commissioned the Bavarian architect Friedrich von Gärtner, recommended by his father, Ludwig I of Bavaria, to design a palace that would house not only the royal family but also the ministerial cabinet. At the same time, the architect planned the future National Garden adjacent to the palace with Queen Amélie. The building served as the official royal residence until 1910, when George I chose to move to the Crown Prince's Palace nearby, which now houses the presidency of the Hellenic Republic.
Text from the Wikipedia article Old Royal Palace, licensed CC BY-SA 4.0.