Alaca Imaret Mosque or Ishak Pasha Mosque (literally the 'colourful mosque') was built by order of Ishak Pasha in 1484 or 1487. It consists of a mosque with an imaret (public charity kitchen). The mosque and imaret are not in use anymore. The mosque has a reverse T plan common to early Ottoman architecture, the prayer hall is covered by two large domes, it has a portico covered by five smaller domes. It had one minaret, which was destroyed after 1912, after Thessaloniki was liberated by the Greek Army and became part of the modern Greek state.
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.