Imagine stained glass reflected by a disco mirror ball, and that's only the beginning of what you can expect from Shah Cheragh, which means "King of the Light." The walls and ceilings are covered with glass and mirror tiles that shimmer and shine as you walk by.
Shiny! The mosque was built as a mausoleum in Shiraz, Iran, and was later fitted with an interior designed to magnify any light passing through. -via Atlas Obscura