How about a virtual excursion (field trip) to the Sistine Chapel? With 360 degree views of the Chapel that includes ceilings and floors, this is a tremendous site for art, history or religious instruction.

The Vatican hosts the site and lets the magnificence of the Chapel speak for itself. There are no words or links on the site, only the ability to rotate the view of the Chapel via your mouse.

Thanks to the very excellent Richard Byrne from Free Technology for Teachers for passing on this link.