Prandau-Normann Castle was remodelled in the second half of the 18th and in the first half of the 19th century, represents a core of the building complex. It consists of a cylindrical medieval tower, a Gothic chapel and a courtyard. In the frame of the restoration project of the complex, the improvement of the foundations and the chapel vaults, as well as its interior designing have been executed.
The interior design of the castle, along with the improvement of the earlier and the production of the new exterior and interior woodwork, according to the existing patterns, have followed. The interior spaces of the castle have been designed in such a way to serve the needs of the current user, the Museum of the Town of Valpovo.
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.