No matter where you visit throughout the world, it is guaranteed that each country will have a rich and varied history in one way or another so there is no need to be disappointed because wherever your yearly vacation will be, there is plenty to see and do and many details of historical eras long past will be etched into your memory.
If you specifically want a holiday just for historical interest then before booking I would strongly suggest to investigate what major events have occurred over the past few centuries and this will normally help make the decision that many people find difficult and to be honest it is common because with the amount of worldwide culture, you cannot help being stumped in the final choice.