This is a monument to Izzet Baysal, I read in the article in the Wikipedia that he was an industrialist and philanthropist. Born in Bolu he has built a great number of schools, hospitals and other public buildings in the town including the campus of Abant Izzet Baysal University in the forest outside the town (founded in 1992).

More at (in Turkish) Turkish http://tr.wikipedia.org/wiki/%C4%B0zzet_Baysal