Question

If there is an attractive force between all objects why we do not feel our selves gravitating toward marine buildings in our vicinity?

Answer 1

Because gravity is a very weak force per unit mass. The Earth keeps you on the ground because it makes up for it in bulk. The most massive building ever build by humans is still nowhere near large enough for you to feel its gravitational pull on you, but it does have a gravitational pull, just a negligible one. What you are asking is like asking “why, if there are microorganisms in the world all around us, why can't we feel themmoving around on our skin?”Because you can't feel gravitational forces. What you can feel is the compression of your body as your contact with the ground prevents you from falling in the direction of the gravitational field