View fullsize Founded by Luigi Frizzo in 2004, Libreria Acqua Alta (High Water Bookshop) is a hidden gem among the gorgeous canals in Venice and considers itself the most beautiful bookstore in the world. Item ID: Venice-1 View fullsize The bookshop stores its collection of vintage books, postcards, maps, and magazines in gondolas and bathtubs to protect them from the constant flooding of Acqua Alta. Item ID: Venice-2