| If you reckon seeing another mosque, archaeological site or museum, take a detour to these remarkable caves, about 100km (62mi) north of Hamadan in western Iran. The caves, discovered only 40 years ago by a local shepherd looking for a lost goat, are up to 40m (130ft) high, and contain several huge, deep lakes. Nothing lives in the clear water - bats don't even hang around here - and there are no signs of any previous inhabitants. Frequent minibuses travel between Ali Sadr village and Hamadan, which is in turn accessible by bus from Tehran, 336km (208mi) to the north-east. |  |
