1. The Medina of Marrakech is a UNESCO World Heritage Site located in the heart of the city. It is often called the \"Red City\" due to the walls surrounding it. The Medina is home to numerous souks or markets, where visitors can buy traditional items such as textiles and pottery. The Jemaa el-Fnaa is the main square of the Medina and is constantly buzzing with entertainment ranging from snake charmers to food stalls. The Medina is also home to several historical landmarks such as the Koutoubia Mosque and the Saadian Tombs.

2. The Medina is open 24 hours a day but specific businesses and landmarks within it may have varying hours. The official phone number for the Medina is +212 5 24 38 52 97.

3. There is no ticket required to enter the Medina, but certain landmarks and attractions within it may charge an entry fee. Transportation options include walking, hiring a guide, or taking a taxi or horse-drawn carriage (known as a calèche).