A "city" in Nevada is being honored with national monument status by President Barack Obama on Friday.

But it's no ordinary city. "City" is, in fact, a 1-mile long sculpture by the artist Michael Heizer. He's also the man behind the "Levitated Mass" at the L.A. County Museum of Art.

Jon Christensen, a columnist with LA Observed who has followed City's rise from sculpture to presidential recognition, joined the show with more.