Visitors will have the chance to sleep in one of the world’s most unusual hostel rooms – after developers discovered a secret vault while creating a new stopover for backpackers in Edinburgh.

Oceania Hotels opened a unique low-carbon 4-star hotel in Lille in a art deco bank, of which the former vault became a spa.

In a video for Architectual Digest posted on Tuesday, the 29-year-old model teamed up with Lehrer Architects' Michael Lehrer to design her dream home -- sex room, money vault and all.