Lisbon's position on seven low hills beside a river once lured traders and settlers, and it's still a stunning site. Add to that its cultural diversity, laid-back feel and architectural time warp, and you have one of the most enjoyable cities in Europe - and also one of the most economical.

At Lisbon's heart are wide, tree-lined avenues graced by Art Nouveau buildings, mosaic pavements and street cafes. Seen from the river - one of the city's many great viewpoints - Lisbon is an impressionist picture of low-rise ochre and pastel, punctuated by church towers and domes.