You should choose a space for your event according to the kind of event it is, and make sure that it's large enough to comfortably accommodate all of your guests. Find out what's in the space - does it come with furniture or equipment?
A baby shower is a party customarily held for a mother-to-be not long before she gives birth. The tradition has its origins in Ancient Egypt. During the event, the mother-to-be is "showered" with gifts. These are mainly things for the child, including toys and clothes - especially if it is already clear whether the child will be a boy or a girl. The shower is often held in a place filled with soft furnishings and toys. In earlier times, only women were invited, and those experienced in motherhood in particular. Nowadays though, everybody is invited.