I am going to be visiting my son in Bangalore. I will be there for three weeks, and during the day time he will be at work, and I will be at home. I am someone who either has to do some kind of work or go out somewhere, and there will be nothing to do there so I would like to go out in Bangalore. I would like to know what to do in Bangalore and what places I should visit. Please also mention any famous temples which should be visited.