A construction boom fuelled by mineral wealth has many in Mongolia's capital feeling trapped in a concrete jungle, with schools, hospitals and even children's playgrounds squeezed out by high-rises. Mongolia's decade-long mining windfall drove double-digit economic growth and a wave of demand for office space and luxury apartments in the vast north Asian country's main city of Ulaanbaatar. But as high-rise buildings pop up, little space is left for much-needed upgrades to public facilities -- with many residents wondering whether they have benefited from years of growth. IMAGES AND SOUNDBITES