A 4,500 year-old highway network lined with well-preserved tombs has been found to cover long distances in Saudi Arabia. Around 18,000 tombs have been observed so far, most either pendant-shaped or ring burials: https://t.co/b1blDapkny #archaeology #history pic.twitter.com/DBKH6PbQaz

— Dr. Alexi Baker (@AlexiBaker) January 17, 2022