The Mežica Mine is a historic lead and zinc mine located in Mežica, Slovenia. It was first opened in the 18th century and operated until 1994, making it one of the longest-running mines in the region. The mine is known for its rich deposits of galena, which is the primary ore of lead. Today, the Mežica Mine is a popular tourist attraction, offering guided tours that take visitors through its underground tunnels. The site also features a museum that showcases the mining history and the geological significance of the area, providing insights into the life of miners and the mining process.