Gothic architecture
Sens Cathedral (begun between 1135 and 1140) was the first Cathedral to be built in the new style (St. Denis was an abbey, not a Cathedral). Other versions of the new style soon appeared in Noyon Cathedral (begun 1150); Laon Cathedral (begun 1165); and the most famous of all, Notre-Dame de Paris, where construction had begun in 1160.
Gothic architecture
Prague, in the region Bohemia within the Holy Roman Empire, was another flourishing center for Gothic architecture. Charles IV of Bohemia was both King of Bohemia and Holy Roman Empire, and he had monumental tastes. He began construction of Prague's St. Vitus Cathedral in the Gothic style in 1344, as well as a Gothic palace, Karlstein Castle in Central Bohemia, and Gothic buildings for the new University of Prague. The nave of Prague Cathedral featured the filet vault, a decorative type of vault in which the ribs criss-crossed in a mesh pattern, similar to the vaults of Bristol Cathedral and other English churches. His other Gothic projects included the lavishly decorated Chapel of the Holy Cross inside Karlstein Castle (1357–1367), and the choir of Aachen Cathedral begun in 1355, which was built on the model of Sainte-Chapelle in Paris. Gothic architecture in Germany and the kingdoms of the Holy Roman Empire generally followed the French formula, but the towers were much taller and, if completed, were often surmounted by enormous openwork spires. The distinctive character of the interior of German Gothic cathedrals is their breadth and openness. German and Czech cathedrals, like the French, tend not to have strongly projecting transepts. There are also many hall churches ("Hallenkirchen") without clerestory windows. Cologne Cathedral is after Milan Cathedral the largest Gothic cathedral in the world. Construction began in 1248 and took, with interruptions, until 1880 to complete – a period of over 600 years. It is 144.5 metres long, 86.5 m wide and its two towers are 157 m tall.