Which one of the Marco Polo Bridge and Tianning Temple Tower was built during the Jin Dynasty?

In the Jin Dynasty, there was a lake in the northeast outside Beijing called Bailiantan. Jin Shizong built an island in the Bailiantan. This island is called Qionghua Island, and the water around the island is now called Beihai. By the way, Marco Polo Bridge was also built during the Jin Dynasty.

The emperors of the Jin Dynasty made Beijing their capital, so where were they buried when they died? Buried in Fangshan, it is called Dafangshan Jinling. Dafangshan Jinling has 18 imperial mausoleums and is the first large imperial mausoleum area in the history of Beijing. So why can’t we visit Dafangshan Jinling now? At the end of the Ming Dynasty, Nurhachi rose to prominence and called himself "Later Jin". Emperor Tianqi of the Ming Dynasty thought that after destroying the imperial tombs of the Jin Dynasty and breaking the feng shui, Nurhaci would be out of business. So the entire Dafangshan Jinling was bulldozed in the late Ming Dynasty... What a pity...

The city of Beijing was built from the Shang Dynasty, and the city was built from the Jin Dynasty. In the Binhe Park near the Guang'anmen Overpass mentioned earlier, there is a "Beijing Capital Memorial Tower" on the ruins of the Jin Dynasty palace. Beijing was founded as the capital in 1153, and in 2014 this year, it was 861.

After the Yuan Dynasty destroyed the Jin Dynasty, the capital was also established in Beijing. At that time, Kublai Khan decided to abandon the old city and build a new city, which later became the famous Yuan Dadu. When the Yuan Dynasty was engaged in urban planning, they decided on the center point of the city's east, west, north, and south, called the central platform. This central platform is near the current Drum Tower. Well, the city center was officially transferred from Xuanwu District to Xicheng District, Dongcheng District... By the way: the site of the ancient observatory is where the southeast corner tower of the Yuan Dynasty was.