Rubuta ci gaba don wannan sakin layi - A lokacin da yake da shekara 34, Fehn ya sami sanannun duniya don zane na Norwegian Pavilion a 1958 Brussels World Exhibition
Ka yi haƙuri. A cikin shekarun 1960s ya samar da ayyuka guda biyu waɗanda suka kasance a cikin aikinsa: Gidan Nordic a Venice Biennale (1962) da Hedmark Museum a Hamar (1967<unk>79). Sauran sanannun ayyuka sun haɗa da Gidan Tarihi na Glacier na Norwegian a Fjærland (1991-2002) da Gidan Tarihi na Art, Gine-gine da Zane a Oslo (2003 <unk>08).