Chapel of St. John the Baptist, St. Roch's Church, Lisbon. Built in Rome in the Sant'Antonio dei Portoghesi church, the Portuguese church in Rome, and blessed by Pope Benedict XIII before being disassembled and transported to Lisbon, were it was reassembled in 1747. Materials: amethyst (altar front), lapis lazuli (columns), jaspis, porphyry, agate, more than twenty qualities of marble, etc. Note the armillary sphere on the floor in front of the altar - a symbol of Portugal as a naval power.