and that's the view from up on top. It's not cheap (and some scammer tried using my ticket.. staff resolved the situation quickly though) but in the end.. you won't get a view of Berlin like this at any other place, so you kinda have to!
"Opening hours".. it's open when the weather's good and closed when the weather is bad.
In this case, though, bad weather means: rainy, cloudly, bad mood or just not feeling it that day. Quite a moody shop, but I like the sentiment.