Mecca, Saudia Arabia
The center of the Muslim world and one of it’s most important sites, Mecca in Saudia Arabia isn’t built on seven hills but in the center of them. The hills are Jabal abu Siba’ , Jabal Safa, Jabal Marwah, Jabal abu Milhah, Jabal abu Ma’aya, Jabal abu Hulayah, and Jabal abu Ghuzlan. You can explore the hills if you want, but if you are not Muslim you cannot enter the city.