The natural environment of the village is unique, with impressive landscapes, while a large area is part of the nature protection network "Natura 2000". A very important and remarkable work of folk architecture of the past years is the watermill of Chatziatos which was constructed entirely by residents of Agios Theodoros. The entire water mill is built with stones, which were quarried from the vertical slopes of the valley created by Pentaschinos.
By looking at the construction of the mill, the one that was preserved, it can be concluded that it is an original and admirable piece of work. In its current form, a stone masonry, six to seven metres long, is presented, supported by three equal-sized arches, each two metres high.