The person you are looking for is Ibn Battuta, but he did not travel to EVERY Islamic Empire, strictly those that existed while he was alive. (There were numerous Islamic Empires that no longer existed by the time he was born and numerous others that would form after he died.)
carried the message of Islam wherever they traveled
The Muslim empire created the idea of symmetry which is used in almost every culture
The Arabian Empire was primarily Muslim, as was the Ottoman Empire.
Yes. The Ottoman Empire was mostly, if not all, Muslim.
The capital of the Muslim empire in India is Delhi. And your welcome.
The Ottoman Empire was not the largest Muslim Empire as the Umayyad Empire in 749 CE was larger. However, it may be the most influential Muslim Empire, but that is up to the perception of the person discussing it.
Aurangzeb's death lead to the decline of the Muslim empire in India.
Foods
The Ottoman Empire
gloves
gloves
Ottoman Empire