Rainbows of light
Found in houses of worship, government buildings and sometimes just structures built with unique art elements, stained-glass windows often portray biblical scenes, geometric patterns or even random designs. Typically made from glass that has been colored with metallic salt, stained-glass windows appeared on the early churches during the 4th and 5th centuries. Some windows are more modern, like this rose window, completed in 1924 in Saint Peter and Paul Catholic Church in San Francisco, California. Here are some of the most gorgeous examples of stained glass from around the world.