A beautiful connection between Charles Bridge and the tomb of St. Wenceslas.
There was little difference between science and mysticism back in the time of Emperor Charles IV. This extended to architecture and urban planning as well, with building projects being started on fortuitous dates and sometimes being placed due to astrological alignments.
Charles IV was active in building up Prague, and two of his most lasting accomplishments are Charles Bridge and Prague Castle. Charles Bridge was originally called the Stone Bridge.
When the Stone Bridge was built in 1357, its position was moved slightly from the 12th century Judith bridge, which had been badly damaged by a flood.
Royal astrologers were involved in building the new bridge, and according to a theory put forward in 2007 chose the time for laying the cornerstone: 9 July 1357 at 5:31 in the morning. This creates a numerical palindrome. 1357 9:7 531. all of the odd single-digit numbers lined up from lowest to highest to lowest. It is also the moment of a favorable position of Saturn in the sky.