Laos's classic north-south route — misty mountain passes and the limestone karsts of Vang Vieng, connecting the old royal capital to the modern one.
The UNESCO-listed former royal capital, where saffron-robed monks collect alms at dawn along the main street.
Limestone karst towers and the Nam Song River, with caves and lagoons scattered through the surrounding hills.
Laos's low-rise, laid-back capital on the Mekong, with the Pha That Luang stupa marking the end of the drive.