The Old Town is the only area in the world (on this scale) where historic urban buildings have been systematically and completely rebuilt after catastrophic destruction reaching approximately 90% [3]. The reconstruction project was developed by a team of architects in collaboration with historians and art historians, based on preserved images of Warsaw, including Canaletto's vedute. Preserved fragments of facades, interior design elements, etc. were also used, while the interior layout was mostly changed and adapted to new functions.

The Royal Castle in Warsaw – a Baroque-Classicist royal castle located in Warsaw at 4 Zamkowy Square. It serves as a museum and a venue for official events.

Most of the buildings in Nowe Miasto were destroyed during World War II. The reconstruction of Nowe Miasto, including the market square, was completed on September 1, 1956.