This is the center of the dome at St. Peter's Basilica. The building is definitely one of the wonders of the world, made all the more astonishing because it was altruistically constructed as a monument to man's love for God. The golden motto in the center reads "S. PETRI GLORIAE SIXTUS PP. V.A. MDXC PONTIF. V.," which roughly translates to "'God's the best!' says Pope Sixtus V who totally built this thing."