Of all the landmarks in London, Tower Bridge sits near the top of the list, perhaps trailing only its namesake tower. The bridge, built between 1886 and 1894, crosses the River Thames near the Tower of London. The structure, which features a pair of towers, is unique in that it is both a bascule (draw) and suspension bridge. The Prince of Wales, the future King Edward VII, and his wife, Alexandra of Denmark, formally opened the bridge on June 30, 1894. The 800-foot-long crossing, often mistaken for the London Bridge, features a pair of 213-feet-tall towers and a 200-foot-long central span.