Saatçi Ali Efendi Mansion, built in 1774 during the reign of Abdülhamit on a sloping street overlooking the sea in the Izmit district of Kocaeli province, is one of the oldest mansions that have survived to the present day. Veli Ahmet Neighborhood is on Alaca Mescit Hill, 250 meters from the city center. It has been an ethnographic museum for years, but I found it has stopped being that.