Pennsylvania has an impressive history and boasts walkable cities with a modern touch, lush forests, and charming small towns. Attractions in the state include Hersheypark, the Philadelphia Museum of Art, the Liberty Bell, and the horticulturally rich Longwood Gardens.

Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

The Cayman Islands is located in the West Indies. It comprises three islands: Grand Cayman, located northwest of Jamaica, and Little Cayman and Cayman Brac, located about 80 miles northeast of Grand Cayman.

Cook Islands is a self-governing island group in free association with New Zealand, comprising two groups of widely scattered islands in the South Pacific Ocean. The Southern, or Lower, Group includes Rarotonga, Aitutaki, Atiu, Mangaia, Mauke, Mitiaro, Manuae, and Takutea.

Mount Kenya, the majestic volcanic mountain located in central Kenya, is a natural wonder that captivates visitors with its dramatic landscapes and rich biodiversity. As Africa's second-highest peak, standing at 5,199 meters (17,057 feet), Mount Kenya offers an array of trekking routes that lead adventurers through lush forests, alpine meadows, and glacial valleys.