LVIV, Ukraine -- Nestled in the historic region of Galicia, this city in western Ukraine is considered one of the country's best-loved architectural and cultural gems.
But in recent months, residents of Lviv have begun to sniff disapprovingly at their historic hometown.
That’s because the air has taken on a distinctive stench — a piquant blend redolent of rotten eggs and untended sewage, with a hint of chemical aftertaste.