Tower Bridge (Tower Hill)
Familiar to Londoners and people the world over, Tower Bridge is one of London's most renowned landmarks. Despite its medieval appearance, the bridge was built between 1886 and 1894. It was the  first of the Thames bridges upstream, and sits adjacent to the historically fascinating Tower of London. The bridge measures 200 feet between  the Gothic towers on either side. A glass-enclosed walkway in the north tower offers a spectacular view of Butler's Wharf downstream, St. Paul's, the Tower of London, and the Houses of Parliament. In 1993, an exhibition to mark the span's centennial opened. It shows visitors the history of the bridge from the beginning, through construction and to the present day. It guides visitors to the north tower walkway, then down the south tower and into original engine room that houses the Victorian boilers and steam engines that once raised and lowered the roadway across the river. This is perhaps the most photographed and painted bridge on earth.