Prickly pear cactus in the Galapagos.

Eroded lava which looks like a topo map.

Pencil urchin spines on the beach.

A juniper tree near Sedona.

A yucca near Sedona.

A giant land tortoise shell.

A rock which appears to have made a hole in another rock, possibly a "lava bomb".

The Galapagos version of "ice plant".

Detail of a mosaic on the side of a bank building in Guayaquil.