The cemetery was built for the near Pitkäniemi mental hospital. Total of 426 patients were buried to the cemetery between 1902-1964 before it was abandoded. Because the human dignity of mental patients was not very high 100 years ago, only small tombstones or no tombstone att all were added to graves. The chapel was burned down more than half century ago.
There are also some remains of old trenches near the cemetery. Those were built by the Russian army during the First World War to defence Finland against the potential occupation of Germany.
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.