Bridge of Sighs and around the world, as well as to other structures. See Bridge of Sighs (disambiguation). The 1861 opera "Le pont des soupirs" by Jacques Offenbach features the bridge, as does the song "Venice" by Gibraltarian band Melon Diesel. "Bridge of Sighs" is also both a 1974 album and song by English musician Robin Trower. Bridge of Sighs The Bridge of Sighs (Italian and ) is a bridge located in Venice, northern Italy. The enclosed bridge is made of white limestone, has windows with stone bars, passes over the Rio di Palazzo, and connects the New Prison ("Prigioni Nuove") to the
Greenhorn Limestone recognized in the Great Plains Region from Minnesota and Iowa to New Mexico to Montana and the Dakotas. In much of Alberta and Saskatchewan, the "Second White-Specked Shale" contains limy equivalents of the Greenhorn. In Kansas, the Greenhorn Formation is divided into the (lowest) Lincoln Limestone, Hartland Shale, Jetmore Chalk, and (highest) Pfeifer shale members, each noted by changes in chalkiness and limestone rhythmite patterns. In Colorado and western Kansas Hydrocarbon exploration, the divisions are Lincoln Limestone, Hartford Shale, and Bridge Creek Limestone. In other states, where the formation is less developed, the unit is not subdivided and is named