These mystical creatures from norse mythology have inspired many writers, composers and even painters. Trolls appear quite frequently in Norwegian fairy tales, and tourists often buy them as perfect travel souvenirs. The trolls had very distinct features. They had long crooked noses, only four fingers and toes on each limb, and most of them had long bushy tails. Some trolls were giants, and others were small.

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The Oslo Opera House is the home of The Norwegian National Opera and Ballet, and the national opera theatre in Norway. It has become a major tourist attraction in Oslo after its opening in 2008. It is the first opera house in the world to let visitors walk on the roof. It has three performance spaces for opera, ballet and concerts: Main House: 1,369 seats, Second House: 400 seats, The Studio: 200 seats.

Oslo Opera House Facts:
Cost € 500 million and took five years to build
Location: Bjørvika, Oslo, Norway
Client: Ministry of Church an Cultural Affairs
Ground first broken on 17 February 2003
Opened with a gala performance on 12 April 2008
Gross area: 49,000 m2 in about 1,100 rooms
Architects: Snohetta

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