Dunedin: if you believe the welcoming sign, this city actually begins in a field of cows about 30km before its actual skyline. In which case, it's one of the only places I've visited where the "urban" population of bovines may exceed its human counterpart. 
Further up the road on the way to Christchurch, we came across a beach famous for its boulders. Skeptical? We were, too, until we found out these perfectly round rocks appeared out of the ground--shaped not by water, but by the pressure of the sand and soil! It was like coming across a nest of dinosaur eggs.
