During the 20th century about 100 buildings have been moved to other places in Moscow.
The houses were relocated so smoothly that in some cases the residents did not even notice the beginning of the movement.
The heaviest house ever moved is now located at Tverskaya, 6, it is completely hidden behind the façade of Stalinist buildings. This house weighs 23,000 tons. The house was relocated at night Nov. 4, 1939 with people inside. In order to avoid panic the officials deliberately gave a wrong date. As a result most people woke up in the morning to discover that their house had been moved. A six-year old girl in one apartment played with blocks and built a tower the day before. She fell asleep, leaving the tower on the table. The next morning her tower survived without being scattered.