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.

Bulgaria is a republic in southeastern Europe. The capital and largest city is Sofiya. Bulgarian culture has been influenced successively by Byzantine, Greek, Russian, and Western cultures.

Greece is a country where layers of history sit side by side with everyday life. In Athens, visitors can stand at the foot of the Acropolis and look up at the Parthenon, built more than 2,400 years ago, then walk a few blocks to modern cafes buzzing with conversation and music. The city’s neighborhoods, like Plaka and Monastiraki, offer both ancient ruins and small family-run shops selling handmade sandals and olive oil soap.

Gulfport, Mississippi, is the largest city on the Mississippi Gulf Coast and an important center for beaches, fishing, shipping, and coastal recreation. The city faces the Mississippi Sound, with barrier islands lying offshore and helping shape its relatively calm coastal waters. Gulfport Beach stretches along the shoreline with wide sandy areas, while the Port of Gulfport serves as a major deep-water shipping facility.

Located in the Southern Territory. Coober Pedy is known as the opal capital of the world, with many opal caves.