This is a shot from inside the Pantheon in Rome, Italy. It is one of the best preserved of all Ancient Roman buildings, and its dome is the world’s largest unreinforced concrete dome.
Because of the Pantheon’s size and circular shape, it’s difficult to get large portions of the interior in frame without taking a panorama, so this one does not include the oculus (opening at the top of the dome), but you can see the sunlight from the opening shining down on the side of the dome. The overexposed entrance sort of makes it appear as if people are filing in through some type of mystical portal . . . well, it would make a neat story, anyway.
You can view more featured photos at my Photo of the Day Collection.