Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 – Napoleon Faded wall painting Waiting at the fish stall Watch out, the gulls also like fish Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Chairs Bench preparing to go south for the winter Amuse Starter In 5 meters, watch out for the black hands! Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Open Monumentendag 2011 – Rapenburg 48 Stone wave Zoötomisch Laboratorium Premtime radio at Leiden University Modern gedicht A car-free city center means busy roads elsewhere A car-free city center means busy roads elsewhere Observatory of Leiden University – Dome Restored Observatory of Leiden University Observatory of Leiden University – Universal joint Observatory of Leiden University – gears Olympia Sport bicycle – Bosch headlight Olympia Sport bicycle Olympia Sport bicycle Olympia Sport bicycle München, Hamburg, Leipzig Obstacle Brandkraan Motorcycles