Santiago de Compostela Archcathedral Basilica

The cathedral is the reputed burial place of Saint James the Great, the apostle of Jesus Christ. It is also one of the only three remaining churches in the world built over the tomb of an apostle of Jesus, the other two being St. Peter’s Basilica in Vatican City and St. Thomas Cathedral Basilica, Chennai in India. Wiki.

Groundbreaking1075
Completed1211

https://en.m.wikipedia.org/wiki/Santiago_de_Compostela_Cathedral