After the Revolution of 1917, Nikolski Street was called 25th October Street. This is a very old and historical street i Moscow since in 1563 Ivan IV Vasilyevich (also known as Ivan the Terrible) founded the first printing house of Russia (the Pechatni Dvor) where in 1703 the first Russian newspaper was published. The building caught fire in 1812 and in 1814 the new Synodal printing House was built in the same place. The lion and the unicorn on the facade contrast with the communist hammer and sickle and two identical sundials:
When I saw this sundial I was walking from the Red Square to somewhere to have lunch so I was lucky for noticing this XIXth century sundial in the heart of Moscow!
Location: Synodal Printing House (map)