Barcelona - Ceiling of the Sagrada Familia, Spain. The columns of the interior are a unique Gaudí design. Besides branching to support their load, their ever-changing surfaces are the result of the intersection of various geometric forms.
NOAA, Ocean Explorer Porpita porpita has a small disc like body and floats freely in the water column. Related to the jellyfish, this species measures just one inch in diameter. Image courtesy of Islands in the Stream 2002 Exploration, NOAA-OE.
Ghadames, Libya Photograph by George Steinmetz Tight clusters of traditional mud-brick-and-palm houses have stood for centuries in Ghadames, a pre-Roman oasis town in the Sahara. Rooftop walkways allowed women to move freely, concealed from men’s view.