The so-called Green Mausoleum is located in the city of Bursa, in the northwest of our mystery country, across the Sea of Marmara from the country’s largest and most famous city. Bursa was the first capital of the Ottoman Empire and the Green Mausoleum is the tomb of the fifth Ottoman sultan Mehmed I. The city is known for its Ottoman architecture, including a number of beautiful mosques.
Can you name that country?
See below for answers.