a challenge architecture backdrop background business fit fitness glass modern reflection stair staircase stairrail stairs stairway steps stone structure structures success training upstairs upwards way to go boat Boats and boating--Equipment and supplies depth indicator front harbour hood line bow motor vehicle Naval architecture nose of a boat ship vehicle water watercraft waterline christmas christmas decoration christmas in the city Christmas light city City Hall december decoration down town evening night people people in a hurry townhall Hamburg winter xmas a lot of fish blue corals deep depth dive diving fish fishes life movement nature red sea rush school of fish sea shoal of fish underwater downstairs elements facade window a worm's eye view brown Denmark forest Forest Floor forests green land May nordic Nordic nature north scandinavia scandinavian nature spring summer white wood woodland woodland scene A wooden board bill bill-post billboard blackboard chart column cut off cut-off hoarding panel pillar pinnacle plaque pole post sign table tablet wooden wooden board empty house interior move to the top well beautiful beauty creation creek ecology fresh landscape love peace peace like a river pretty Psalm 23 reflections relaxation ripples river riverbank scenery scrapbooking stream blue planet conservation dez pain globe greenhouse gas greenhouse gasses heavens orbs overpopulation planet polluted pollution save the planet skies sky smog smoke through a glass dark xymonau