My talk will be devoted to a (quick and very brief) introduction to the domino tilings (intensively studied during the last fifty years), the subject that is very simple in the origin, while giving almost immediately very beautiful images. My goal will be to explain (roughly), where does the "arctic circle" effect in tilings come from, meanwhile mentioning asymptotic shape of Young diagrams, entropy, height function and variational problems. If the time permits, I will speak about computation of determinants and permanents.