Libreria Acqua Alta

There's a reason why non-Italian speakers flock to this second-hand bookshop—owner Luigi Frizzo might not be exaggerating when he calls it the most beautiful in the world. Tens of thousands of books are piled higgledy-piggledy on shelves, surfaces, and even in a gondola (the back of the shop opens directly onto a canal). A small army of cats helps man the tills.