Estonia. But only if you enjoy quiet, wilderness and wildlife. That said the cities are bursting with culture, saw an opera and ate the most amazing vegan food.
Beunas Aires (and the rest of Argentina). I was expecting good but it's so much more and better than all the cliches.
Singapore. Again there is a high tech, businessy, built-up cliche in my head but the reality was much richer, more layered, more interesting. Could easily have spent another week there, it's a fascinating place.
Santa Cruz and surrounds Bolivia, everyone skips over it but they are missing out.
Somerset. Everyone races down to Devon and Cornwall but Somerset has three AoNBs, a national park, a varied coastline, internationally important wetland nature reserves and all the west country cider, scones and charm of Decon and Cornwall.
Newark and Nottinghsm. Just both much better than expected!