Grid corrections : places where North American roads deviate from their otherwise logical grid lines in order to account for the curvature of the Earth. You could drive out there your whole life, de Ruijter realized, and not realize that certain stop signs and intersections exist not because of eccentric real estate deals, but because they are mathematical devices used to help planners wrap a rectilinear planning scheme onto the surface of a spherical planet.
Photographer Eric Fischer created stunning maps of the places that pictures are taken in fifty cities worldwide. New York. London. Paris. San Francisco. [more inside]
Fabulous images of the Moscow Metro underground, also known as "the people's palaces". Click "M"s on the entry map to view gorgeous (often architecturally surreal) panoramic images, and visit the picture gallery for sweet details. Via Jorgen at Viewropa.