Mobile phones must be switched off on site, and the microwave in the common room resides in a Faraday cage to stop radiation escaping.

BBC: Aye to the telescope

The 747-room Shangri-La Hotel Singapore, located on a sprawling 15-acre compound on the western edge of the CBD, is a legendary stop for diplomats, CEOs and celebs escaping the bustle of the city.

BBC: Business trip: Singapore