The most heavily populated of the Hawaiian islands, Oahu is known as the Gathering Place. Two parallel mountain ranges, the Koolau Range and the Waianae Range, cross Oahu from northwest to southeast. . Among the many popular beaches is the renowned Waikiki, backed by the famous Diamond Head, an extinct volcano.

Do you want a vacation experience so unique and thrilling that you actually have to wear a hard hat? Look no further than New Zealand's White Island, where you can stand on an active volcano! Located offshore from Whakatane and Tauranga, White Island is New Zealand's only live marine volcano and one of the most active in the world. The tours are quite the experience, especially since you can hear the hissing and bubbling of the volcano all around you!

Sagres sits at the southwestern edge of continental Europe in Portugal’s Algarve region, where the Atlantic’s wide horizon meets rugged cliffs and open skies. For centuries this point was linked to maritime adventure and visitors can still feel that sense of discovery in the air. Here, people like Prince Henry the Navigator gathered cartographers, shipbuilders and astronomers in the 1400s to push beyond maps of the known world and shape the early Age of Discovery from Sagres’ dramatic headlands.

One of the most remote cities in the world, formerly known as Turkestan. It is situated along the ancient Silk Road near the Sino-Russian border. Sightseeing highlights include the ancient mosques and open markets. A fascinatingly colorful and ancient way of life still exists.

Pigeon Key is a small historic island in the Middle Keys, located just offshore from Marathon beneath the Old Seven Mile Bridge. The island occupies only a few acres, yet its position within the Florida Keys gives it an unusual combination of maritime history and tropical surroundings. Today, Pigeon Key is preserved as a historic and educational site, with restored buildings, a small museum, and facilities for marine science programs.