Fort Legionow was built between 1852 and 1854 on the southern foreland of the Warsaw Citadel. Initially, the fort had the shape of a three-storey artillery turret, surrounded by a fortified ditch with three cofferdams and a gallery in the counterscarp. Its task was to guard the citadel from the side of the New Town and also to defend the seasonal bridge over the Vistula River.
In the years between 1866 and 1874 the fort was modernized. A battery emplacement in the shape of the letter “L” was built between the bastion and the River Vistula, equipped with two emergency brick shelters and also a brick battery which was meant to control the Vistula River bed. The fort survived during the Warsaw Uprising despite the ongoing fierce fighting over the Polish Security Printing Works and after 1945 it was used by the military.
Since 1999, the fort has been privately owned by a well-known family of Warsaw restaurateurs, Agnieszka and Marcin Kreglicki. Three buildings have survived in Warsaw arranged around the Citadel. Fort Legionow is the only structure in the Warsaw Citadel of a “mountainous” nature, with a complex underground system.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.