Constructed for the Royal Virgilian Academy of Science and Arts (Accademia Virgiliana), the Teatro Bibiena di Mantova was designed in late Baroque or early Rococo style by Antonio Galli Bibiena and erected between 1767 and 1769. With a bell-shaped floorplan and four rows of boxes, it followed the new style of theatres then in vogue. It was intended to host both theatre productions and concerts, and scientific discourses and conventions. Bibiena also provided the monochrome frescoes in the interior. The theatre is now considered to be his most important work.
It was opened officially on 3 December 1769. A few weeks later, on 16 January 1770, thirteen-year-old Wolfgang Amadeus Mozart played a concert here, with resounding success.
In 1773, Giuseppe Piermarini, who constructed the neighbouring palazzo for the Accademia Virgiliana, designed and built the façade of the theatre.
Still used for its original purposes, it now can also be visited by tourists as one of Mantua's museums. The theatre is relatively small, with a scene 12,3 metres wide and 5,6 metres deep, and a maximum audience of 363 persons.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.