From the deserts of Egypt to the heights of the Andes and the heart of Rome, we uncover the lost technologies that built history’s most enduring structures. Explore the Egyptians’ organizational genius, the Incas’ seismic-proof stonework, and the Romans’ self-healing concrete in a journey revealing that the greatest technology has always been human ingenuity.

• Egyptian mastery of large-scale construction logistics

• Inca earthquake-resistant stone designs

• Roman concrete with self-healing properties