In Edinburgh, an ancient fortress looms, the hills are steep, and travelers delight in the hidden charms of the Old Town and New Town. Hike to find spectacular views on Arthur's Seat, shop the downhill streets of the Royal Mile, and visit Edinburgh Castle, an imposing royal fortress that defines this city's skyline.

This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers.

Vietnam is a country where dramatic landscapes and deep-rooted traditions intertwine, creating a mosaic of experiences that stretch from misty northern mountains to the lush waterways of the Mekong Delta. Its history is marked by ancient kingdoms, colonial legacies, and a remarkable story of resilience in the face of conflict.

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.

Katakolon, also known as Katakolo, is a charmingly small port and fishing town on the coast of Greece. A primary entryway to the nearby ancient ruins of Archaia Olympia, Katakolon is a popular stop on many Mediterranean cruises. Before heading to Olympia, be sure to unwind on the warm Grecian sands of Paralia Katakolo or savor a bite of fresh seafood at one of Katakolon’s quaint cafés.