Visit the Santa Catalina Arch

Gaudi’s hillside park of mosaic dragons, twisted stone colonnades and a serpentine bench overlooking Barcelona.

Visit Antigua Guatemala, a UNESCO World Heritage city in Guatemala. Explore the iconic Santa Catalina Arch (yellow archway with views of Volcán de Agua), see the ruins of La Merced Church (baroque facade and earthquake-damaged interior), and wander through the Central Market (vibrant local market with textiles and produce).

Walk the 1883 suspension bridge’s wooden promenade from Brooklyn into Manhattan, with the skyline rising ahead through the Gothic stone towers.

Maya "Pompeii" buried by ash, UNESCO-listed.

Visit Cologne Cathedral, a masterpiece of High Gothic architecture and a UNESCO World Heritage site. Construction began in 1248 and took over 600 years to complete. It is the tallest twin-spired church in the world, standing at 157 meters, and houses the Shrine of the Three Kings, a reliquary said to contain the bones of the Biblical Magi.

Visit Neuschwanstein Castle, the iconic fairy-tale castle in Bavaria, Germany, that inspired Disney's Sleeping Beauty Castle

The 50,000-seat amphitheatre where Rome staged its bloodiest spectacles for 2,000 years

Walk along the Great Wall of China, a UNESCO World Heritage site