We bought tickets to go up the hill. They were validated for 30 min only. We never watched time so nobody did tell us that to go back down you need to buy another tickets.when we got down in funicular there were security guys checking tickets. They told us we have to pay fine which was just ridiculous:800 crowns for each person and note that ticket itself costs 24 crowns. We were just pissed off. Why nobody checks tickets then when you enter funicular up there? There were other tourists like us being fined as well. So guess we are not the only one caught.