Istanbul is a city built on layers of empire. Spanning two continents, it was once the capital of three major empires: Roman, Byzantine, and Ottoman. Visitors walking through the Sultanahmet district can witness this timeline firsthand, from the Roman-era Hippodrome to the Byzantine mosaics of Hagia Sophia, and the towering minarets of the Blue Mosque. At nearby Topkapi Palace, rooms still display the jeweled swords, ceremonial robes, and handwritten Qurans once used by Ottoman sultans.

Nestled in Kenya’s southern region, Amboseli is a captivating destination renowned for its stunning landscapes and vibrant wildlife. Dominated by the majestic Mount Kilimanjaro, Amboseli National Park offers a striking contrast between the snow-capped peak and the arid plains below. The park is famous for its expansive vistas and the opportunity to witness diverse wildlife, including large herds of elephants, which are a major attraction.

Lucca, a Tuscan city surrounded by remarkably intact Renaissance walls, offers more than just postcard views. Known for its quiet streets and grand piazzas, Lucca stands apart with its circular street layout, still following the lines of a Roman amphitheater from centuries ago. The walls, now repurposed as a 4-kilometer tree-lined park, are a favorite route for locals and visitors who explore them on foot or by bike, passing old bastions and panoramic viewpoints along the way.

Acadia National Park in Maine is home to the highest point on the United States’ East Coast. The bay side town of Bar Harbor, with its restaurants and shops, is a popular gateway to this 47,000-acre national park filled with dramatic, breathtaking scenery.

This energetic city is home to three UNESCO World Heritage Sites: the Elephanta Caves, Chhatrapati Shivaji Maharaj Terminus, and the city's distinctive Victorian and Art Deco buildings. It is the largest city in India and contains 7 distinct districts. There is so much to see here, but the most popular tourist attractions are typically concentrated in South Mumbai such as the Elephanta Caves, the Gateway of India and Chhatrapati Shivaji Maharaj Terminus.