In Mexico City, Mexico
Wood and stone details of one entrance into the Metropolitan Cathedral in the Centro Historico.
The whole historic district is built on former lakebed which means much of it is sinking at a pretty fast rate. The Metropolitan Cathedral, which was built over more than two centuries between 1573 and 1813 (according to Wikipedia), is visibly angled and full of slanted, cracked surfaces that make it plain that it’s sitting on a very shaky foundation. Between this and Mexico’s frequent earthquake activity, it’s a miracle that this building is still standing at all.