Tuida was an early Byzantine and medieval fortress, the remains of which are located on the hill of Hisarlaka in the northeastern part of Sliven, which offers a unique view of the 'Sinite kamani' and the city. It is part of the old mountain fortification system, which played an extremely important role in the defence of the Roman Empire, and later of the early Byzantine Empire, as well as the medieval Bulgarian state. Tuida Castle was originally built in the 4th century AD and was in use until the 13th century.
The Jacques Cartier Manor House is the only existing property wich belonged to Cartier, the discoverer of Canada, in 1534. It’s a rare example of a great 16th century explorer’s home. Jacques Cartier opened up the North American continent to the French via the Gulf of Saint Lawrence. The manor house has been restored and furnished to illustrate both the everyday life and the travels of its famous owner. From the kitchen with its red clay floor, to the explorer’s bedroom, this museum has lost none of its period charm.