Tamas Dezso has an eye for the underbelly of New Europe. The Hungarian photojournalist’s images of Romania show us a nation still transitioning from Cold War dictatorship, and not without pain. The Romania left behind is what interests him: rural hovels, abandoned factories, resilient villagers. And not everything in his forgotten Romania was abandoned by accident. The Flooded Village of Geamana shows the remnants of a town engulfed by toxic sludge that was unleashed when the Soviet-era government turned a valley into a dump for mining by-products. All that remains above the water line is a defiant church steeple. At Robert Koch Gallery, 49 Geary St., 5th Floor, San Francisco, (415) 421-0122. Prices range from $1,800 to $33,000.