Here the model is set at the new Athens SNF Opera House (by architect Renzo Piano). I photographed the location with bracketed 360 shots, composed into hdri radiance 360 image.
I am working on a node group for lighting and will be posting more soon.
I am happy with the lighting, though the shot is lacking in resolution: the camera used is a Ricoh Theta S. It captures the 360x360 degrees, on every shot without stitching at 5376X2688 pixels. Though 14.5 megapixel may sound descent, consider that you are viewing a fraction of the 360deg horizon of the world environment, FOV = 90deg when using a Blender camera with a 17mm (rather wide) lens. In other words your real resolution left to right is a quarter of the horizon or 1344 pixels