The Kazan Kremlin is a historic fortress located in the city of Kazan, the capital of the Republic of Tatarstan in Russia. It was built in the 16th century and is recognized as a UNESCO World Heritage Site. The Kremlin features a mix of architectural styles, reflecting the diverse cultural influences in the region, including Tatar and Russian elements. Within the Kremlin, visitors can find notable structures such as the Qol Sharif Mosque and the Annunciation Cathedral. The site serves as a symbol of the city's rich history and cultural heritage, attracting tourists and scholars interested in its significance.