Visit Tunis

Visit Carthage, the ancient Phoenician city-state in modern Tunisia. Explore the Byrsa Hill archaeological site (the ancient acropolis with Punic and Roman ruins), see the Antonine Baths (some of the largest Roman baths in Africa, overlooking the Mediterranean), and wander through the Carthage National Museum (housing artifacts from the city's history, including Punic stelae and Roman mosaics).

A UNESCO medina by the beach, the Ribat fortress and Roman mosaics in the museum.

The fourth holiest city of Islam: the Great Mosque of 670 and the carpet souks.

Djerba's main town: whitewashed souks, the El Ghriba synagogue and Star Wars sets across the island.

A Roman amphitheatre for 35,000 rising out of a small town, better preserved than the Colosseum.

Visit Amsterdam, capital of the Netherlands. Cruise the UNESCO-listed canal ring (17th-century waterways with over 1,500 bridges), see masterpieces by Rembrandt and Vermeer at the Rijksmuseum, explore the Anne Frank House (historic hiding place during WWII), and wander the Jordaan district (picturesque streets with cafes and boutiques).

Visit Barcelona, capital of Catalonia in Spain. See the Sagrada Familia (Antoni Gaudí's unfinished basilica with intricate facades and towering spires), stroll down La Rambla (tree-lined pedestrian street with street performers and La Boqueria market), explore Park Güel (Gaudí's whimsical public park with mosaic-covered structures and city views), and admire the Gothic Quarter (medieval streets with the Barcelona Cathedral and Roman ruins).

Visit Bangkok, capital of Thailand. Explore the Grand Palace (home of the Emerald Buddha and intricate Thai architecture), take a boat ride along the Chao Phraya River (passing temples and local life), shop at Chatuchak Weekend Market (one of the world's largest markets with over 15,000 stalls), and sample street food like pad thai and mango sticky rice at Yaowarat (Chinatown's vibrant food scene).