MILAN -- Travelers at Milan’s main train station will this week be able to take a break among reproductions of murals by elusive street artist Banksy.“The Word of Banksy — The Immersive Experience” opens Friday in the Mosaics Gallery, on the rail level of Milan’s monumental Central Station.It features reproductions of some of Banksy's best-known pieces, such as “Nola,” created in 2008 out of sympathy with the people of hurricane-battered New Orleans.Banksy’s street art has been recreated by