Árbol de Piedra is an isolated rock formation in the Eduardo Avaroa Andean Fauna National Reserve of Sur Lípez Province, Bolivia. Much photographed, it projects out of the altiplano sand dunes of Siloli in the Potosí Department, about 18 kilometres north of Laguna Colorada.

And, constant stars, in them I read such art As truth and beauty shall together thrive, If from thyself, to store thou wouldst convert; Or else of...