Isola di Capo Rizzuto, Caminia (comune of Staletti), Siderno, Parghelia, Ricadi and San Nicola Arcella. In addition to the coastal tourist destinations, the interior of Calabria is rich in history, traditions, art and culture. Cosenza is among the most important cultural cities of Calabria, with a rich historical and artistic patrimony. Medieval castles, towers, churches, monasteries and other French castles and structures from the Norman to the Aragonese periods are common elements in both the interior and coastline of Calabria. The mountains offer skiing and other winter activities: Sila, Pollino and Aspromonte are three national parks that offer facilities for winter sports, especially in the towns of Camigliatello (comune of Spezzano della Sila), Lorica (comune of San Giovanni in Fiore), Gambarie and Monte Sant'Elia (comune of Palmi). Unemployment rate The unemployment rate stood at 20.1% in 2020 and was the highest in Italy and one of the highest inside the European Union. Infrastructure and transport Shipping and ports The main Calabrian ports are in Reggio Calabria and in Gioia Tauro. The port of Reggio is equipped with five loading docks of a length of . The port of Gioia Tauro has seven loading docks with an extension of ; it is the largest in Italy and the eighth largest container port in Europe, with a 2018 throughput of s from more than 3,000 ships. In a 2006 report, Italian investigators estimated that 80% of Europe's cocaine arrived from Colombia via Gioia Tauro's docks. The port is also involved in the illegal arms trafficking. These activities are controlled by the 'Ndrangheta criminal syndicate. Motorways and rail The region is served by three heavily used roads: two national highways along the coasts (the SS18 between Naples and Reggio Calabria and the SS106 between Reggio Calabria and Taranto) and the A2 motorway, which links Salerno to Reggio Calabria, passing by Cosenza along the old inland route. Building this motorway took 55 years and was extremely over budget due to organized crime infiltration. There is high-speed rail on Calabria's Tyrrhenian Coast with the Frecciargento (Silver Arrow) offering a route from Rome to Reggio Calabria. There are also many ferries connecting Calabria with Sicily through the Strait of Sicily with the main one being from Villa San Giovanni to Messina. Air travel In Calabria there are two main airports: the Reggio Calabria Airport, a few kilometres from Reggio Calabria's city centre, built in 1939 was