For those who live in a big city, any chance to spend some time outside is welcome, even in the winter. Manhattan’s Bryant Park is a prime spot to soak up some of the sunshine that makes its way through the surrounding skyscrapers and illuminates the edges of the bare trees. People huddle with cups of coffee and cocoa, or watch the skaters at the small rink. If it gets too cold, the grand New York Public Library is right there, always warmer and quieter.