Khartoum, the capital of Sudan, sits where the Blue and White Nile rivers meet, creating a unique landscape of waterways, islands, and riverbanks.

Lake Powell, stretching across the Utah-Arizona border, is one of the largest manmade reservoirs in the United States. Formed by the flooding of Glen Canyon after the completion of the Glen Canyon Dam in 1963, it covers over 180 miles in length and contains nearly 2,000 miles of shoreline, more than the entire West Coast of the U.S. Despite its modern origins, the area has long been home to the Ancestral Puebloans and later Navajo communities.

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.

Tunis' white-washed, blue-shuttered buildings hide a treasure trove of Arabic and Ottoman art. Inspect illuminated manuscripts from the Koran, follow the twists and turns of the fascinating old Medina (inner city), marvel at the ornate Palace of Dar Ben Abduallah and the magnificent Djamaa-Ez-Zitouna Mosque, whose 184 columns were "recycled" from the rocky ruins of Carthage.

San Gimignano, a stunning medieval hilltop town in Tuscany, Italy, is often called the "Medieval Manhattan" due to its remarkable skyline of ancient towers. Encircled by 13th-century walls, the town is a UNESCO World Heritage site that offers a mesmerizing journey back in time. As you stroll along the cobbled streets of the historic center, you'll be enchanted by the preserved Romanesque and Gothic architecture, from charming piazzas to grand churches.