Petri Kaverma: Silta / Bridge, 2007. © Photo: HAM Helsinki Art Museum / Hanna Kukorelli Silta / Bridge Artist Petri Kaverma Pasuunapuisto, Kannelmäki, Helsinki Helsinki City Art Museum has commissioned artist Petri Kaverma (b. 1963) to produce an environmental work for Pasuunapuisto in Kannelmäki. Kaverma’s work includes five silhouette figures, which have been cut from thick, iron sheets and positioned near an area of uncultivated woodland. The work belongs to the City of Helsinki’s art collection, which is managed and curated by HAM. Read more.. At map