Amazing double-helix staircase in the Château de Chambord, Loire Valley, France. The two helixes ascend three floors and never meet. In the center is an open air shaft that lets in light. Some believe Leonardo da Vinci designed the staircase.
Inside the cathedral ~ Valencia, Ciutat Vella (Valencia's Old City) ~ Valencia Cathedral was founded in the & incorporates a number of architectural styles & artistic treasures - including the Holy Grail.
New York City based photographer Richard Silver captured the majestic architecture of churches across Manhattan in 180 panoramic shots that give viewers a sense of the top to bottom design of these houses of worship.