I abosolutely believe that there can be, and in fact there IS. Many people only think there wouldn't be happiness/pleasure/peace only because we wouldn't know it as we do now... as something that appears only as a yin to a yang, as the opposite of something worse.
If there was no war, that state would be peace. If there was no sadness or pain, happiness and pleasure would be a constant way of life. There would still be varying levels of happiness - I would say the natural state of things would then be a level of contentment that many can not concieve of, because for many people, happiness and contentment are foreign feelings.
But for the most part, WE HUMANS are the ones creating our sadness, our pain, and certainly our wars. We DO live in a constant state of contentment. The world is perfect. The world itself is not filled with sadness or war. WE HUMANS create that. We also, for the most part, create our happiness and our pleasure. Happiness is a choice. So is pleasure, and so is peace (as a personal state at least).