Take a look inside London's underground Fort Knox - where the wealthy go to store their valuables

LONDON - The world is becoming less certain and those with wealth are focused on safeguarding it.

With that in mind, London developer Amazon Property (no relation to the online retailer) opened the £30-million Armitage Vaults 40 feet below the city's West End.

The vaults have 10,000 square feet of storage space encased in one metre thick ferrous-concrete, and insurance to cover items worth up to £10 million.

Both businesses and private clients have signed up to use the facilities.

Tom Archer, operations Director of Amazon Property said: "The facility is new, however we have already had significant interest and the vaults are already 20% let, with 75% of users being from the UK, the remainder are international. Around 50% of the tenants are wealthy private clients, the balance are businesses."

Take a look inside.