St. David's Cathedral

This is a late-Norman cathedral in Wales that has undergone numerous renovations over the centuries including one by G.G. Scott 1862-70.

A carved screen separates the nave from the choir, beyond which is the presbytery containing the high altar.

Designed by John Hardmann Powell, three mosaic panels from 1871 decorate the high altar.

The crucified Jesus, John, Mary Magdalene and Mary in the central panel.

Ecclesia, representing the Christian Church, is on the left.

Synagoga, symbolizing the Jewish synagogue, is on the right.

Sources:
Imaging the Bible in Wales Database
Sacred Destinations
Barr, Sheldon. Venetian Glass Mosaics: 1860-1917. London: Antique Collectors' Club, 2008. 125.
Wikipedia