“Navigating in the Dark,” a trilogy of exhibitions by Kalliopi Lemos, was installed in three far-flung locations, suitable to its theme of psychic and geographic exploration. Curated by Maria Marangou, director of the Museum of Contemporary Art of Crete and curator of the Greek Pavilion at last year’s Venice Biennale, it was initiated at the Benaki Museum in Athens, where four large-scale biomorphic steel sculptures were placed around a honeycomb-shaped pool of water dotted with steel-mesh human heads slowly attaining various patinas. Bear All Crawl, 2009, is a wriggling larva split to reveal