Danish artist Thomas Dambo has been building stuff using trash and recycled materials since an early age, starting with smaller sculptures such as birdhouses and furniture to bigger pieces such as the six “Forgotten Giants” he recently installed around Copenhagen.

Built mainly from recycled wood, such as old pallets, an old wooden shed, a fence and so on, Dambo along with a team of local volunteers created six giant troll-like wooden sculptures and hid them at some of his favorite places around the city. These places do not see many visitors because they are located off the beaten track. To help find these public installations, Dambo has created a series of “treasure maps” which he engraved into stones near each sculpture. Each giant is named after one of the volunteers who helped build it.