Puerto Rico, an unincorporated territory of the United States, is a Caribbean island rich in history, culture, and natural diversity. Its capital, San Juan, is a vibrant hub where centuries-old Spanish forts, pastel-colored colonial buildings, and lively plazas tell the story of the island’s complex past.

Holy Island, also known as Lindisfarne, is a tidal island off the Northumberland coast in northeast England. It is connected to the mainland by a causeway that is covered by the sea at high tide, making careful tide planning essential for access. The island’s compact village contains stone cottages, small shops, churches, and the remains of Lindisfarne Priory. Lindisfarne Castle stands on a rocky hill above the harbor, while beaches, dunes, salt marshes, and open shoreline surround the settlemen

KwaZulu-Natal is a province on South Africa’s east coast, stretching from the Indian Ocean beaches around Durban to the mountains of the Drakensberg and the savanna of the interior. Its landscapes include subtropical forests, grasslands, wetlands, estuaries, sugarcane fields, and protected wildlife areas.

The capital city of the Dominican Republic is rich in history and beauty, boasting 16th-century Spanish architecture and the oldest cathedral in the Americas. The narrow streets of the old colonial city are a testament to the complex mixture of forces that contributed to the construction of the first European city in the Western Hemisphere.

Sleeping Bear Dunes National Lakeshore occupies a long stretch of northwestern Michigan’s Lower Peninsula along Lake Michigan, protecting towering dunes, sandy beaches, forests, inland lakes, and steep coastal bluffs. The protected area extends across the Leelanau and Benzie county region and includes the Manitou Islands offshore. Its most recognizable feature is the Sleeping Bear Dune, which rises high above Lake Michigan and the surrounding landscape.