Centuries ago, Portugal was a pioneer of worldwide exploration. Until recently, however, it was never as successful in attracting visitors to its own shores. Outside of greater Lisbon, the Algarve, and the island of Madeira, Portugal remained unknown and undiscovered by the mainstream visitor for many decades.

Today’s travelers are beginning to realize that Portugal has been unjustly overlooked. It offers sandy beaches, art treasures, flavorful cuisine, a unique form of architecture (Manueline), charming handicrafts, a mild climate, moderate hotel rates, and polite and friendly people. Only 2 million annual visitors came to Portugal in the late 1970s. The number swelled to 20 million in the mid-1990s, and an explosion of hotel and resort building has kept pace. Today Portugal attracts some 22 million visitors annually.

• Frommer's Portugal, 21e, will feature a brand new history and culture chapter and several new detailed city maps.
• Veteran authors Darwin Porter and Danforth Prince provide up-to-the-minute coverage of nightlife and shopping in Lisbon, including where to find the best antiques and wine stores; insider information on the best beaches, vineyards, and historic attractions, including Portugal's 13 UNESCO World Heritage sites; detailed walking tours and nature hikes; accurate maps; and advice on how to plan a successful family vacation.