In my latest game, I've conquered a non capital city (Ollantaytambo) founded by a destroyed civilization. As you can see in the attached image, "View City" option doesn't appear after I've captured it. It seems this kind of windows, with several options to choose through buttons, can only show 4 options at most (I don't remember seeing 5 options ever). If this is the case, you can always raze it after pupetting or anexing, so I think "Raze the City!" should be replaced with "View City" instead (with capital cities, "View City" option always appears because you can't raze them).
I've also attached a savegame before the conquest of the city.
I've also attached a savegame before the conquest of the city.