(Reuters) - Security cameras, codes, a double key system, and a two-tonne vault may seem a bit much for a few bottles of wine, but the owners of the fine vintages kept by Au Bonheur du Vin in the heart of Geneva sleep easy.Situated right beneath a private bank in Geneva and dedicated to people who love their wines, the vault which used to store gold for a Swiss bank is now one of the safest commercial wine cellars in Switzerland. Built in 1988 as a nuclear shelter for the bank staff, with a safe and one meter-thick walls, the bank and its basement are also surrounded with a fence on pillars in case of earthquake.