Portsmouth prides itself on being one of the nation’s oldest cities — it’s existed since 1623. The history, the shopping, the harbor and the food are just a few reasons why people love Portsmouth. The city is near the mouth of the Piscataqua River near Maine. Portsmouth regularly earns a place on “best places to live” lists, which makes it a great place to visit as well. Check out lobster tours, whale watching, deep sea fishing and the historic Isles of Shoals.