|Settled in 1623, Dover is the oldest continuous settlement in New Hampshire and seventh oldest in the United States. On the Greater Dover Chamber of Commerce's Guided Tours of Historic Dover you will stroll down the Central Avenue Business District while learning about the rise and fall of the textile industry, "Dover's Black Day," and notable visitors and residents of Dover's past. You will also visit the Cochecho, Bellamy and Piscataqua Rivers that gave Dover its economic advantage, from ship building, to farming, to leading the way in cotton manufactured goods from the 1820s to 1880s. Along the way you will notice the ten different types of architecture used through the City dating back to the late 1700s. Tours begin at the Chamber Visitor Center (550 Central Avenue) at 10:30am on Saturdays and are $8 per person or $5 per person for families of 4 or more. Walking shoes and water bottles are recommended as the tours generally are an hour and a half. For more information or to make reservations contact the Greater Dover Chamber of Commerce at (603) 742-2218.