This small town, standing on the Western coast of Lake Maggiore in the so-called Borromea Gulf, is one of the most visited touristic sites of entire Piemonte. Its territory includes three of the four Borromean Islands: Isola Bella, Isola Madre and Isola Superiora, also named Isola dei Pescatori. The first recorded file about the town is dated 998, but even in the Roman age, the way leading from Milan to the Sempione pass ran by this site.

The largest among the Borromean Islands was formerly named after San Vittore and then "Isola Maggiore". Its surface is mostly covered by gorgeous botanical gardens, planted between the 16th and the 19th century. A palace, belonged to the Borromeo family, also stands on the island.

The only one, among the Borromean Islands, to be permanently inhabited, is also called "Isola Superiore" (Upper) due to its position, North of its "twin" Isola Bella. Its iconic skyline is dominated by the bell tower of the Church of San Vittore, mainly built in the 16th and 17th century but based on an 11th century chapel. The 35 inhabitants live on tourism and fishing.

This small island, formerly inhabited by a few fishermen, was deeply transformed by the Borromeo family, since 1632; in this year, Carlo III Borromeo started the construction of a gorgeous palace, dedicated to his wife Isabella, which was later completed, in 1671, by an amazing Baroque garden. Palazzo Borromeo also hosted Napoleon I with his wife and, later in 1935, the Conference of Stresa, held between the representatives of Italian, British and French government.