Cathedral of St. Thomas

Still standing after taking a hit in World War II, this spectacular church tells its tumultuous and varied history through its impressive stained-glass windows.

Near the coast, this centuries-old cube-shaped fortress offers a surprising event space, providing an exceptional venue for live music concerts and other events.

Ghosts of historic seafaring vessels and military sieges hover near this former harbor, remembered fondly by locals and honored by a plaque at the entry.

With its varied art displays and its vistas of passing ships and submarines, this cylindrical fort is a major historical attraction on the Millennium Promenade.

Wander down charming cobbled streets, see remains of the city’s early defenses and watch the harbor in action from the comfort of a pub.

Families flock to Portsmouth's waterside amusement park, where exhilarating activities include a high ropes course, roller coasters and a huge indoor play area.