Some see a frozen tear clinging to the “cheek” of the new Salvador Dalí Museum in St. Petersburg, Fla. Others see a melting crystal. Depending on the viewer’s vantage point, still others say they are reminded of a misshapen potato, a nose, an amoeba and a dolphin in a nosedive. The builders of the glazed atrium structure that drapes over the side of the boxy building simply call it the “enigma.” After all, the builders had to solve a mystery of how to shape, engineer and hang a transparent and organic structure—75.5 ft at its tallest, 105 ft at its
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.