Pis forParking lot
A parking lot is a place where you park your car, usually while you go do something like shopping.
The peak of a mountain is its highest point. The top of anything may also be called its peak. Anyone or anything that is at the high or best point is also called a peak, for example "he was in peak physical condition" or "she was at the peak of her career".
Pis forPlayground
Pis forPolice station
A police station is a place where Police officers work. A police station might have interview rooms, storage for confiscated items, holding cells for people who have been arrested, storage for paperwork, and offices for Police officers to complete that paperwork in.
Pis forPost office
A prison, also called a jail, gaol or penitentiary, is a place where people who have done bad things are locked up as a punishment. Some people can be put in jail for many, many years because they have done something very, very bad.