I found the Pantheon to be quite unassuming from the outside. Sure, it looked quite nice sitting there by the Piazza della Rotonda, a nice fountain in the front and an annoying piece of scaffold on the left hand side (story of my trip).
However, it’s a little like the TARDIS. I step inside what seemed to be a smallish structure and I am faced with a wide open space and an awe inspiring dome high above me, with light flowing through to add to the impression of vastness. On a better day I could imagine a beautiful beam of sunlight coming through, like a tractor beam from a spaceship ready to whisk someone away to the stars as we see in various sci-fi movies.
Well played, Rome, well played.