The Cathedral de Lyon:
Below is a view of some of the traboules, covered passageways, which connect much of old Lyon. They were built from the 4th century on to allow the citizenry to get to the river and the silk workers to get from their workshops on the hill to the merchants down near the river. The traboules allowed workmen and craftsmen to transport clothes and other textiles through the city while remaining sheltered from inclement weather and are often credited with helping prevent the occupying Germans from taking complete control of these areas during World War II, as only true Lyonnais were knowledgeable about where the passageways led.
The Fourviere hill is where Lyon was first established back in Roman times as "Crows hill" (Lugdunum in Latin). Sacre Couer de Fourviere was built between 1872-96 in the Romanesque Byzantine style very fashionable in the 1880s, like Sacre Coeur in Paris. Both were built to thank Virgin Mary for sparing the town from Prussian invasion.