Share these beautiful photos from New York's unusual guest on Friday: the space shuttle Enterprise.
The Hong Kong government commissioned this graffiti as part of its "Say No to Drugs" campaign.
Photo of the Day – Christmas Market in Cologne, Germany.
Photo of the Day – At Hong Kong's popular Yuen Po Bird Market, one hears the caged birds singing.
Photo of the Day – Christmas In London.
Photo of the Day – Protesters march in New York.
Photo of the Day – Artist Rosana Palazyan, "... on that day I thought to stop, but I can't..." (2000)
Photos of the Day – Images of the Occupy protests in London show the diverse protesters.