The famous “Grzybek” is located in the centre of the town. The mushroom-shaped fountain is built over the spring no. 11, which is a 414-metre deep brine well. Brine is pumped from here to the Ciechocinek graduation towers. The “Grzybek” was designed in 1926 by Jerzy Raczyński.

Throughout its history it underwent several serious renovations and overhauls, it was elevated and moved several metres from the initial position.