Qasr Al-Farīd, Al-'Ula, Saudi Arabia

Qasr Al-Farīd, Al-'Ula, Saudi Arabia

2,000-Year-Old Qasr Al-Farīd, Al-'Ula, Saudi Arabia.

Carved from a single sandstone monolith, this unfinished Nabataean tomb-known as "The Lonely Castle"-stands isolated in the desert near Mada'in Salih.