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.

Yucatán, a Mexican state, is popular for its Gulf of Mexico beach areas and spectacular Mayan ruins. It is bordered by the states of Campeche and Quintana Roo.

Stretching over 4,200 kilometers along the southwestern coast of South America, Chile is a country of dramatic contrasts and hidden surprises. From the world’s driest desert in the north to the icy fjords of Patagonia in the south, Chile offers a landscape that constantly reinvents itself. Visitors can walk through the Atacama Desert, where NASA tests Mars rovers, or gaze at the clearest night skies on Earth from the high-altitude observatories near San Pedro de Atacama.

Mount Nebo rises in western Jordan, overlooking the Jordan River Valley, the Dead Sea, and, on clear days, Jerusalem and Jericho.

This pleasant port town provides a nice, calmer contrast to bustling Rome, so travelers are advised to not simply pass through, but linger and discover more of Civitavecchia. Explore Forte Michelangelo, shop at Corso Centocelle, see the neoclassical Trajan Theatre, and delve into the therapeutic Taurine Baths of Civitavecchia.