In 1763 Russian Empress Catherine II ordered to fortify Tartu again. It was decided to build a gunpowder magazine (Püssirohukelder) in the former city moat. The responsibility of the building was assigned to Field-Marshal General de Villebois. His engineers started to build magazine in 1768. The bricks are brought from the old Mary Church (about where the University Main Building is now) and the ruins of the bishop settlement on Toome Hill demolished in 1708. The magazine completed in 1778.
Today Püssirohukelder offers Estonian and German dishes and has room for up to 300 people.
Reference: Püssirohukelder
The Basilica of Santa Maria in Trastevere is one of the oldest churches of Rome. The basic floor plan and wall structure of the church date back to the 340s, and much of the structure to 1140-43. The first sanctuary was built in 221 and 227 by Pope Callixtus I and later completed by Pope Julius I.
The inscription on the episcopal throne states that this is the first church in Rome dedicated to Mary, mother of Jesus, although some claim that privilege belongs to the Basilica di Santa Maria Maggiore. A Christian house-church was founded here about 220 by Pope Saint Callixtus I (217-222) on the site of the Taberna meritoria, a refuge for retired soldiers. The area was made available for Christian use by Emperor Alexander Severus when he settled a dispute between the Christians and tavern-keepers.
The church underwent two restorations in the fifth and eighth centuries and in 1140-43 it was re-erected on its old foundations under Pope Innocent II.