The Royal Tombs are four prominent grand tombs carved into the western side of Khubtha Mountain, overlooking the city center. Their elaborate architecture and prominent locations indicate that they held families from Petra's upper social strata, or royalty.  From right to left, they are: The Urn Tomb, Silk Tomb, Corinthian Tomb, and Palace Tomb. The Urn Tomb derives its name from the funerary urn located on the pediment at the top of the façade. Set back in a deep recess in the Khubtha slope, the Silk Tomb is the smallest of the four and has drawn acclaim for the brilliant banded coloring of its sandstone façade. Petra's Corinthian Tomb, named after Greek Corinthian-style capitals, is patterned after the Khazna. The Palace Tomb, the largest and most elaborate, is believed to reflect a Hellenistic or Roman-period palace facade. The Nabataeans were deeply concerned about their dead. They buried them in monumental tombs located in prominent positions around the city, where they dominate their surroundings and command views from afar.