In August 2004, Time magazine named the city one of Europe's 14 "secret capitals" where Bergen's capital reign is acknowledged within maritime businesses and activities such as aquaculture and marine research, with the Institute of Marine Research (IMR) (the second-largest in Europe) as the leading institution. Bergen is the main base for the Royal Norwegian Navy (at Haakonsvern) and its international airport Flesland is the main heliport for the huge Norwegian North Sea oil and gas industry, from where thousands of offshore workers commute to their work places onboard oil and gas rigs and platforms.
One of Norway's largest shopping malls, Lagunen Storsenter, is located in Fana in Bergen, with a turnover of 2 540 million Norwegian kroner, and 5.2 million visitors every year.
Tourism is an important income source for the city. The hotels in the city may be full at times, due to the increasing number of tourists and conferences. Prior to the Rolling Stones concert in September 2006, many hotels were already fully booked several months in advance. Bergen is recognised as the unofficial capital of the region known as Western Norway, and recognised and marketed as the gateway city to the world famous fjords of Norway and for that reason it has become Norway's largest � and one of Europe's largest � cruise ship ports of call
