Andorra is a tiny principality locked away in the Pyrenees between France and Spain. I rented a car and visited Andorra as a day trip from Barcelona. The road toll charges were more expensive than the car hire, about 60 euros in total!
Andorra la Vella
While Andorra is usually known for its ski resorts, its biggest attraction is the shopping (its tax-haven status encourages duty-free shopping). Wander down the high street of the capital Andorra la Vella and you think you've wandered into an airport duty-free. Perfume, clothing, watches, electrical goods are all at knockdown prices (though not that cheap). On the way out of Andorra, expect to be stuck in very long traffic queues for Customs.