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(詳細はSt. Petersburg includes long, straight boulevards, vast spaces, gardens and parks, decorative wrought-iron fences, monuments and decorative sculptures. The Neva River itself, together with its many canals and their granite embankments and bridges help to give the city its particular ambience. St. Petersburg's position below the Arctic Circle, on the same latitude as nearby Helsinki, Stockholm, Aberdeen and Oslo (60° N), causes twilight to last all night in May, June and July. This phenomenon is known as the "white nights". The white nights are closely linked to another attraction — the eight drawbridges spanning the Neva. The bridges are drawn from May to late October according to a special schedule, between approximately 2 a.m. and 4:30 a.m. to allow shipping to pass up and down the river. Every night during the navigation period from April to November, 22 bridges across Neva and main canals are drawn to let ships pass in and out of the Baltic Sea.〔Schedule for main drawbridges across the Neva river (Official Russian schedule): ()〕 The historical center of St. Petersburg was the first Russian patrimony inscribed on the UNESCO list of World Heritage Sites. ==Canals and bridges== (詳細はNeva river. Peter the Great designed the city as another Amsterdam and Venice, with canals instead of streets and citizens skilful in sailing. Initially, there were only about ten bridges constructed in the city, mainly across ditches and minor creeks. According to Peter's plans, in the summer months, the citizens were supposed to move around in boats, and in the winter months when the water froze to move in sledges. However, after Peter's death, new bridges were built as it was a much easier way of transportation. Temporary pontoon bridges were built across Neva in the summertime. The largest temporary bridge across the Bolshaya Neva was in operation from 1727 to 1850. The first permanent bridge of bricks and stones across the main waters of Bolshaya Neva river was the Lieutenant Schmidt Bridge, built from 1843 to 1850, and opened in 1850. Today, there are 342 bridges over canals and rivers of various sizes, styles and constructions, built at different periods. Over 800 smaller bridges over smaller ponds and streams are gracing public parks and gardens. Thanks to the intricate web of canals, St. Petersburg is often called the "Venice of the North" which is a popular poetic name for the northern capital. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Landmarks of Saint Petersburg」の詳細全文を読む スポンサード リンク
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