. >> what is hajj? >> once in a lifetime for muslims who are able, it is required to perform hajj, which is visiting the holy site of mecca and performing certain rituals to make your faith complete. >> picture on our screen right now, what is that? >> this is my home city, mecca. i mess mecca. >> who can go there and why do they go there and how important is it? >> mecca, it's for muslims only. non-muslims are not allowed to visit. mecca and medina are the two holiest cities. you go for hajj once in a lifetime, or you go far visit, a small version of hajj that you can do any time of year, to visit the holy site of mecca. >> do you have any idea how many people have died there at the hajj or in mecca around this cabba. >> died for what? >> saddam peds over the years we've read about them, so many people there that you might have thousands of people die? for happened a few times some reasons that they explained why. the last -- not the last -- i can't remember the last time it happened, which, over 1,000