Transfiguration Church of the St. Euphrosine monastery is a well-preserved monument of Pre-Mongol Rus architecture. It was built between 1152 and 1161 by the Polatsk architect Ioann by the order of the princess St. Euphrosyne of Polatsk as a cathedral church of the Convent of the Saviour and St. Euphrosyne. In 1582, King Stefan Batory gave the church to the Order of Jesuits. In 1832, the church was placed under the Orthodox administration, and in 1990 it became a property of the Belarusian Exarchate. In the 19th century it was partially remodeled according to the design by the architect A. Port.
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.