ultrafacts: Over the centuries, the empire’s grass bridges gradually gave way, and were replaced with more conventional works of modern engineering. The most famous Incan bridge—the 148-footer immortalized by Thornton Wilder in The Bridge of San
ultrafacts: Over the centuries, the empire’s grass bridges gradually gave way, and were replaced with more conventional works of modern engineering. The most famous Incan bridge—the 148-footer immortalized by Thornton Wilder in The Bridge of San
ultrafacts: Over the centuries, the empire’s grass bridges gradually gave way, and were replaced with more conventional works of modern engineering. The most famous Incan bridge—the 148-footer immortalized by Thornton Wilder in The Bridge of San
