Avenida dos Aliados - The grandest avenue in the city, very urban and very European. Clérigos Church - climb to the top of its landmark 75-metre bell tower for an amazing view. Lello's Bookshop - a fabulous old book store with a lavish art nouveau interior. See More Port Wine Lodges - You can learn everything about one of the world’s most famous wines. Casa Serralves - One of the most beautiful examples of art deco architecture in Portugal D. Luis I bridge - Is one of the city's ex-libris, the pride of Porto's people. See Less