A wonderland is a place full of amazing things — a place that does not follow ordinary rules. In its first and most famous use it is a made-up place in a story: Lewis Carroll's 'Alice in Wonderland' fixed the word in English forever, and for many readers 'Wonderland' with a capital W means that one place, with the rabbit and the tea party. But the word also describes real places when you want to say they feel unreal in a good way. A city covered in fresh snow is a 'winter wonderland'. A shop stuffed with strange old objects is 'a wonderland for collectors'. This pattern — 'a wonderland for X' — is very common: it means a place where someone who loves X will be delighted. Because the word promises delight, writers reach for it in travel articles and advertisements, which means it can sound a bit worn out. And it can be turned on its head: calling somewhere 'a bureaucratic wonderland' means the rules there are as mad and upside-down as in Alice's story. That backwards use borrows from the book, not from the happy meaning.