Prague Castle
It's very big, practically a city inside the huge walls. It is not a castle like that of the stories one imagines. No. It's a huge city, with giant buildings, ancient churches and thousands of nooks and crannies. You have to go with time and desire to walk. It is worth arriving from the funicular and also walking. We went twice in fact. In some sectors you have to pay entrance, as in the street of gold.