Vietnam
Within its long, thin frame lie dramatic shows of mountains and coastal scenery, historic sites, medieval towns and indigenous hill tribes. For more conventional holiday pleasures, you’ll also enjoy wonderful food, indulge in interesting shopping and laze on peaches of beaches. Start at one end and leave from the other. A 12-day, small-group tour costs from £1,899pp, including flights, B&B and some meals; Exodus (exodus.co.uk).