Monterey, California, is a coastal gem with a rich maritime history and stunning natural beauty. Located on the rugged Pacific coastline, this charming city is renowned for its world-class aquarium, the Monterey Bay Aquarium, which offers visitors a chance to explore the vibrant marine life of the region. Monterey's historic Cannery Row, once the center of the sardine-packing industry, has been transformed into a lively waterfront area brimming with shops, restaurants, and cultural attractions.

Welcome to Nairobi, safari capital and the largest city in Kenya. At one time a simple hydration spot for the Maasai, this high-energy East African city now strikes a balance between the cosmopolitan and the natural. In its adjacent Nairobi National Park, visitors will see lions, zebras, giraffes and rare black rhinos.

Utrecht, a charming city in the Netherlands, offers a captivating blend of history, culture, and modern vibrancy. Dominated by its striking Dom Tower, the tallest church tower in the Netherlands, Utrecht invites visitors to climb its 465 steps for panoramic views of the city and the surrounding countryside.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

La Jolla, California, is a coastal gem nestled within San Diego, renowned for its breathtaking cliffs, pristine beaches, and charming village atmosphere. One of the main draws is the La Jolla Cove, a picturesque spot that offers crystal-clear waters perfect for snorkeling, kayaking, and spotting marine life, including the iconic California sea lions that sunbathe on the rocks.