From a bookshop that wouldn't be out of place in Diagon Alley to a criss-crossed steel bridge and azulejos-clad churches, Porto is teeming with interesting sights.
Porto: Churches, bridges and bookshops
Gloucester Cathedral
One of England's great ecclesiastical buildings, Gloucester Cathedral boasts picture-perfect cloisters, a tranquil garden and some of the finest stained glass in the country.
Little Old World 