Vartiovuori observatory is the former observatory of the Royal Academy of Turku. Building was completed 1819 and it was designed by German architect Carl Ludvig Engel. By its style, the neoclassical observatory is typical work of Engel and it has obvious similarities to Helsinki University Observatory and Pulkovo Observatory (in St. Petersburg, Russia) designed also by him. Building is located on top of the Vartiovuori hill, close to the cathedral and Aura river and it's well visible from many places in city center.
The Academy moved to Helsinki after the Fire and got a new observatory there few years later. Instruments were moved to Helsinki and finally Vartiovuori Observatory became defunct 1834. At 1836 Åbo Navigationsskola (Maritime School) moved into empty observatory building and stayed there until 1967. Between 1986 and 1998 building was a maritime museum and during the repair of the Turku Art Museum 1999–2005, the changing exhibitions were placed in observatory. Currently and also in the picture, a flag of the foundation Stiftelsen för Åbo Akademi flies over the building.
The observatory and several wooden houses (current Luostarinmäki Handicrafts Museum) on the hill were saved from the Great Fire of Turku 1827.References:
The Amphitheatre of the Three Gauls was part of the federal sanctuary of the three Gauls dedicated to the cult of Rome and Augustus celebrated by the 60 Gallic tribes when they gathered at Lugdunum (Lyon). The amphitheatre was built at the foot of the La Croix-Rousse hill at what was then the confluence of the Rhône and Saône.
Excavations have revealed a basement of three elliptical walls linked by cross-walls and a channel surrounding the oval central arena. The arena was slightly sloped, with the building"s south part supported by a now-vanished vault. The arena"s dimensions are 67,6m by 42m. This phase of the amphitheatre housed games which accompanied the imperial cult, with its low capacity (1,800 seats) being enough for delegations from the 60 Gallic tribes.
The amphitheatre was expanded at the start of the 2nd century. Two galleries were added around the old amphitheatre, raising its width from 25 metres to 105 metres and its capacity to about 20,000 seats. In so doing it made it a building open to the whole population of Lugdunum and its environs.