Just below that, protected beneath the glass, are the front-facing, 2-megapixel camera and a notification LED.

ENGADGET: BlackBerry Z10 review Mobile

They had minor marks and tears and were put back on show in September 2006 at the Munch Museum - this time protected in heavy glass boxes.

BBC: 1994: Art thieves snatch Scream

Both would be protected by impact-resistant "gorilla glass" developed by the US company Corning to reduce the risk of breakage.

BBC: Yota smartphone

Inside, we found ourselves gaping at a 500-year-old mummy, teeth still visible through his open lips, protected by only a thin sheet of glass.

BBC: A 500-year-old mummy �C with teeth

Blast-resistant windows protected many workers at the Pentagon from flying glass, according to House Administration Committee Chairman Bob Ney, Republican of Ohio.

CNN: U.S. Capitol getting security overhaul