Saint Nicholas Cathedral, founded by Mstislav the Great in 1113 and consecrated in 1136, is the oldest surviving building in the central part of Veliky Novgorod after the Saint Sophia Cathedral.
The Saint Nicholas Cathedral is on the World Heritage list as a part of object 604 Historic Monuments of Novgorod and Surroundings. The cathedral was designated by the Russian government as an architectural monument of federal significance.
Wikipedia https://en.wikipedia.org/wiki/Saint_Nicholas_Cathedral,_Novgorod
Coordinates 58°31'4.027" N 31°17'6.835" E