The Historic Site of Lyons was designated a UNESCO World Heritage Site in 1998. The long history of Lyons, which was founded by the Romans in the 1st century B.C. as the capital of the Three Gauls and has continued to play a major role in Europe's political, cultural and economic development ever since, is vividly illustrated by its urban fabric and the many fine historic buildings from all periods.
The specific regions composing the Historic Site include the Roman district and Fourvière, the Renaissance district (Vieux Lyon), the silk district (slopes of Croix-Rousse), and the Presqu'île, which features architecture from the 12th century to modern times. Both Vieux Lyon and the slopes of Croix-Rousse are known for their narrow passageways that pass through buildings and link streets on either side. The first examples of traboules are thought to have been built in Lyon in the 4th century.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.