In parts of Canada, it is now rare for new shopping malls to be built. The Vaughan Mills Shopping Centre, opened in 2004, and Crossiron Mills, opened in 2009, are the only malls built in Canada since 1992. Outdoor outlet malls or big box shopping areas known as power centres are now favored, although the traditional enclosed shopping mall is still in demand by those seeking weather-protected, all-under-one-roof shopping.