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.
The Château des ducs de Bretagne (Castle of the Dukes of Brittany) is a large castle located in Nantes. It served as the centre of the historical province of Brittany until its separation in 1941. It was the residence of the Dukes of Brittany between the 13th and 16th centuries, subsequently becoming the Breton residence of the French Monarchy. Today the castle houses the Nantes History Museum.
The restored edifice now includes the new Nantes History Museum, installed in 32 of the castle rooms. The museum presents more than 850 objects of collection with the aid of multimedia devices. The castle and the museum try to offer a modern vision of the heritage by presenting the past, the present and the future of the city. Night-time illuminations at the castle further reinforce the revival of the site. The 500-metre round walk on the fortified ramparts provides views not just of the castle buildings and courtyards but also of the town.