France’s Architect Le Corbusier, the prophet of vertical living who thinks that even Manhattan skyscrapers are too small, came in for some criticism last week in London’s Economist.

But this is no coin—it’s the top of a brass cylindrical rod that extends 1 kilometer into the ground in the name of art. The Vertical Earth Kilometer is a permanent Earth sculpture ...

Blanc first worked with Herzog & de Meuron in 2008, when he created a vertical garden wall for the CaixaForum arts center in Madrid. The gardens for the Pérez Art Museum are quite different ...