The United States naval base at Pearl Harbor was surprised by a Japanese military strike on the morning of December 7, 1941: all eight U.S. Navy battleships were damaged, more than 2,000 Americans lost their lives, and this very attack led to the American involvement in World War II. Today, a memorial reminds of those who died in the assault, while two museums and outdoor exhibits present the historical happenings and their backgrounds. The visitor centre in general also features exhibits and interpretive programs for other Pacific National Parks: Kalaupapa National Historical Park on the island of Molokai, American Memorial Park in Saipan, and War in the Pacific National Historical Park in Guam.

Moving away from the coast you can discover megalithic stone circles in the prehistoric remains honeycombing the woods and fields around Arzachena. The Nuraghe Albucciu, 2 kilometres southeast of Arzachena, is one of Gallura’s best preserved nuraghi. About 4 kilometres south of Arzachena lies Coddu Vecchiu, one of the island’s most complete 'giants’ tombs'. Nearby you can also find another giant's tomb, Tomba dei Giganti di Li Lolghi, and the Li Muri Necropolis. Regarded as Gallura’s finest example, the "Necropoli di Li Muri" is estimated to date back to 3,500 BC.

The Struve Geodetic Arc is a chain of survey triangulation points that stretch from Hammerfest in Norway all the way to the Black Sea. The imaginary lines go through ten countries and over 2,820 kilometres. Carried out between 1816 and 1855 by the astronomer Friedrich Georg Wilhelm Struve, this survey represented the first accurate measuring of a long segment of a meridian, helping establish the exact size and shape of the planet. Sweden has seven measurement points and four of them are on the World Heritage List (on the mountains Tynnyrilaki, Jupukka, Pullinki, and Perävaara). The mountaintop unveils an expansive view.