Located in the Coral Sea, just off the eastern coast of Australia, the Great Barrier Reef is the largest system of coral reefs in the world and a colorful ecosystem home to a variety of marine life, including sea turtles, fish, sharks, stingrays, and corals.

Though it's San Diego County's smallest city in both size and population, Del Mar is one of its most widely known due to prominence of its Del Mar Race Track & Fairgrounds. The City of Del Mar with about 2 square miles of land for its 5,211 residents, the city gives up almost one quarter to the fairgrounds. But its beaches stretch from Del Mar Shores Beach Park in the north edge of Torrey Pine State Reserve and the La Jolla Underwater Park in the south.

Tirana, the lively capital of Albania, is a city that blends historical charm with modern vibrancy. At the heart of its transformation is Skanderbeg Square, a bustling hub named after the national hero Gjergj Kastrioti Skanderbeg.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.

Bari, the capital of Puglia in southern Italy, is a vibrant port city with a rich history and lively atmosphere. Begin your exploration at the Basilica di San Nicola, an iconic pilgrimage site housing the relics of Saint Nicholas. This Romanesque church, dating back to the 11th century, is renowned for its stunning architecture and historical significance (Basilica di San Nicola).