Visit the Source of the Nile

Stone marking where Livingstone and Stanley camped on Lake Tanganyika’s shore.

Wetland park of hippos and birds.

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

Visit the iconic Big Ben clock tower in London, one of the most famous landmarks in the world

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

Stand among the cloud-wrapped ruins of Machu Picchu, the 15th-century Inca citadel perched high above Peru's Sacred Valley

Visit the Great Pyramid of Giza

Explore the ancient Mayan city of Chichen Itza in Mexico