Venice's food markets are where the city's culinary identity is most visible. The Rialto market complex, anchored by the Pescheria (fish market) and the Erberia (fruit and vegetable market), has operated on the same site beside the Grand Canal since the 11th century. Vendors sell lagoon fish, Adriatic shellfish, radicchio from Treviso, white asparagus from Bassano del Grappa, and artichokes from Sant'Erasmo, the agricultural island in the northern lagoon known as the garden of Venice. Beyond Rialto, smaller neighborhood markets pop up in campi across the city, and floating produce boats (barconi) still moor along certain fondamente, selling fruit and vegetables directly from their decks. The Via Garibaldi street market in Castello is a lively local alternative to the tourist-heavy Rialto area.