Al-Khazneh, or "The Treasury," is one of Petra's most magnificent rock-cut facades. This iconic structure was originally built as a mausoleum and crypt around the 1st century AD during the reign of Aretas IV Philopatris. Its name, which translates to "The Treasury" in Arabic, stems from a local legend that an Egyptian pharaoh hid a treasure in the urn at the top of the temple. Despite the myths, the urn is actually solid sandstone. Al-Khazneh's grandeur has made it a popular tourist attraction and a symbol of the ancient Nabatean Kingdom's architectural prowess.