During a period of rapid change along the US-Mexico border in 2007, Arizona-based artist David Taylor began photographing the 276 monuments that delineate the border between Mexico and the United States, documenting each of the obelisks installed by the International Boundary Commission following the Mexican/American War. Read more.
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Artists and auction houses alike contribute to the comic excesses of their world – but are they in on the joke?
A 73,000-year-old fragment of stone marked with red lines raises questions about the nature of aesthetic experience