The Domus Aurea, or Golden House, was the sprawling palace of the Roman emperor Nero. Archaeologists recently uncovered a chunk of Egyptian blue ingot, an example of the opulence of the palace itself.

“The Domus Aurea once again moves [us] and restores ... B.C.E., it became an “essential element” in decoration and design, according to La Brújula Verde’s Guillermo Carvajal.