At the start of the 19th century, tensions were thick between the British and Americans along the Canadian border. The British worried about a possible assault on Québec City. Among their preparations, they built four Martello towers on the Plains of Abraham in 1812. Although the War of 1812 soon erupted along the Great Lakes and the Saint Lawrence River, these defenses were never tested. Tourists thoroughly enjoy going inside Martello Tower Number 1 at Battlefields Park.