The Prague Astronomical clock in the Old Town Square is among the most popular sights in the world. The average visitors count is around 700 000 every year. This high demand is one of the reasons behind an extensive reconstruction, which should bring it back to its state before 1945. What can we expect? The reconstruction will be very difficult. It will begin this month, with the erection of scaffolding against the building, and it should be completed in June 2018, the same