Bridge of Sighs (Oxford) Bridge of Sighs (Oxford) Hertford Bridge, often called "the Bridge of Sighs", is a skyway joining two parts of Hertford College over New College Lane in Oxford, England. Its distinctive design makes it a city landmark. The bridge is often referred to as the Bridge of Sighs because of its supposed similarity to the famous Bridge of Sighs in Venice. However, Hertford Bridge was never intended to be a replica of the Venetian bridge, and instead it bears a closer resemblance to the Rialto Bridge in the same city. There is a false legend saying that many decades ago, a
Limestone kilometers. The world's largest limestone quarry is at Michigan Limestone and Chemical Company in Rogers City, Michigan. Limestone is very common in architecture, especially in Europe and North America. Many landmarks across the world, including the Great Pyramid and its associated complex in Giza, Egypt, were made of limestone. So many buildings in Kingston, Ontario, Canada were, and continue to be, constructed from it that it is nicknamed the 'Limestone City'. On the island of Malta, a variety of limestone called Globigerina limestone was, for a long time, the only building material available, and is still very frequently used on