South Africa is where the story of humanity literally starts. The Cradle of Humankind, a UNESCO site about an hour from Johannesburg, has produced more hominin fossils than anywhere else on Earth—including famous specimens like "Mrs. Ples" and "Little Foot" that are millions of years old. Blombos Cave on the coast has some of the earliest evidence of human symbolic thinking: shell beads and ochre engravings from 75,000+ years ago. Then there's the rock art. The San people painted thousands of sites across the Drakensberg mountains and elsewhere, creating one of the longest artistic traditions in human history. For something more recent (but still pre-colonial), Mapungubwe in the north was a powerful medieval trading kingdom with gold artifacts and connections to the Swahili coast. It's a country where you can see both the deep origins of our species and the complexity of African civilizations that European history books largely ignored.

Everyone knows Machu Picchu, but Peru's archaeological story goes back thousands of years before the Incas showed up. The Nazca Lines—huge geoglyphs carved into the desert that you can only really see from the air—are still genuinely mysterious. Chan Chan, near the coast, was one of the largest adobe cities ever built. And the Sacred Valley is packed with Inca sites that get a fraction of the crowds Machu Picchu does. The geography helps too: you've got coastal desert, the Andes at 15,000+ feet, and the edge of the Amazon all in one country, each region with its own history of settlement.

The pyramids at Giza are probably the most famous archaeological site on Earth, and they're worth the hype. But they're really just the starting point. Head south along the Nile and you hit Luxor, where the Karnak Temple complex is so large it takes hours to walk through properly. Across the river is the Valley of the Kings, where Tutankhamun's tomb was found. Keep going south and you reach Abu Simbel, where Ramesses II carved massive temples directly into the cliff face. Egyptian civilization lasted over 3,000 years—longer than the time between us and the Romans—so there's a lot of ground to cover.

Mexico is where you realize how much was happening in the Americas before 1492. Teotihuacán, about an hour outside Mexico City, has pyramids that were among the largest structures in the world when they were built—and we still don't know exactly who built them. The Maya sites in the south, like Palenque, are half-swallowed by jungle and covered in hieroglyphic inscriptions. Chichén Itzá gets the most visitors, but sites like Monte Albán (Zapotec) or Tulum (Maya, right on the Caribbean coast) are just as impressive in different ways. These weren't primitive societies—they had writing, detailed astronomical calendars, and urban planning that rivaled anything in Europe at the time.