Another check off my skybar list: Top of the Mark, San Francisco! I ended up here just after the sunset at grandview park. Although this is "only" on the 19th floor, it commands a great view over the city due to being perched on top of Nob Hill. This space was once a penthouse suite, but it was converted in 1939 into a cocktail lounge. The drink prices aren't amazingly out of line with what you would expect ($13-15/drink), but if you get a seat by the window it does give you sense of being above the city.