A group of people enjoy a bike ride through a city street during the 2010 Kritiska masa event. The joyful riders feature a man in a green hoodie, another in a pirate costume, a woman in a red polka-dot dress, and a woman in a beige hat and jacket. In the background are historic and modern buildings.

A group of people enjoy a bike ride through a city street during the 2010 Kritiska masa event. The joyful riders feature a man in a green hoodie, another in a pirate costume, a woman in a red polka-dot dress, and a woman in a beige hat and jacket. In the background are historic and modern buildings.