The Lille Europe Centre is located just a short walk from the city's main train stations, with Eurostar and high speed train (TGV) links across Europe. As well as its traditional engineering industries, Lille is home to online retail and mail order warehouses, taking advantage of the city's custom-built distribution parks. Research clusters have been formed, including one focusing on health and a new centre for research into non-woven textiles. Lille is France's fourth largest city and home to the headquarters of a number of multinational manufacturers, including Europe's largest vegetable canning and freezing operation. The centre has secure underground parking and is within easy reach of major French and Belgian road routes. It is also convenient for Lille-Lesquin Nord Pas de Calais Airport.