Sites by continent
Africa (2 sites)
Egypt
The Old Kingdom pyramid fields of Giza, Saqqara and Dahshur (c. 2700–2500 BCE) and the Great Sphinx.
30 tours
The Osirion, the Dendera zodiac and the granite boxes of the Serapeum – favourites of "lost technology" debates.
22 tours
Asia (6 sites)
Cambodia
Indonesia
Japan
Lebanon
Turkey (Türkiye)
Monumental T-pillar enclosures near Şanlıurfa, built by hunter-gatherers roughly 9600–8200 BCE.
13 tours
Multi-level cities cut into volcanic tuff, deep enough to shelter thousands.
10 tours
Europe (7 sites)
Bosnia & Herzegovina
France
Ireland
Italy (Sardinia)
Malta
United Kingdom (England)
United Kingdom (Scotland)
North & Central America (1 sites)
Mexico
South America (5 sites)
Bolivia
Peru
Zig-zag walls of gigantic polygonal blocks above Cusco, plus nearby Tiwanaku and Puma Punku in Bolivia.
10 tours
Sacred Valley fortress-temple with the six monoliths of rose rhyolite hauled from a quarry across the river.
3 tours
Hundreds of giant lines, trapezoids and animal figures etched into the desert of southern Peru by the Paracas and Nazca cultures, roughly 500 BCE to 500 CE. AI surveys since 2022 have found hundreds more.
3 tours
Desert peninsula south of Lima, home of the Paracas culture (about 800 BCE to 100 CE): elaborate textiles, the 180 m Candelabra geoglyph on a sea-facing hillside, and cemeteries famous for strongly elongated skulls, many on display in the private Juan Navarro (Paracas History) Museum.
6 tours