Petit Jardin the restaurant in Saint-Guilhem-le-Désert, France strongly discourages the use of cell phones, as they have an anti-device policy in the restaurant and if one found using the same is instantly given the yellow card and if seen doing again then you will be asked to leave the premises. That strict.
Sistine Chapel, Vatican city strictly bans the use of cell phones inside the chapels. That completely distracts and disturbs the visitors inside the Chapel. Also, according to their website its clearly mentioned, that “Visitors are required to activate the silent function of their mobile device.
“The use of mobile phones is forbidden in the Sistine Chapel.”
Scandinave Spa in Canada is one of the renowned chains of spas, doesn't prohibit smartphones but they don't offer any wifi service to use in their premises, so any which ways no one will be able to indulge in any of Social Media. Also, it is a silent spa means no phone calls or rings are completely discouraged here. So one can have the complete relaxing time here, without any disturbance.