The mausoleum of Orhan Gazi and his father, Osman Gazi, founders of the Ottoman Empire, is located inside the gates of Tophane Park, and the age of these tombs dates back to nearly 600 years. Other than these tombs, you will find a tall tower with an hour top, dating back to the nineteenth century, overlooking the city. Knowing that entry to this park is free, so do not miss the opportunity to visit this park to enjoy the green areas and the picturesque view of the city from an altitude as it is located on a hill.