This could be the official entrance to the Underground Kingdom of the Dwarfs.
As you already know there is at least 150 of them and the numbers are growing each year. I will just give you a sample of their jovial personalities 🙂
I am pretty sure that in Wroclaw there is a Dwarf for every occasion in life. You just have to find the right one. So, why not visit this year and get acquainted with the merry bunch? 😉