Modern glass skyscraper being built at Olympic site in Beijing, China

21st century china building sites building work capital cities china chinese chinese architecture city centre city life city living constructing cranes east asia far east futuristic giant crane hard labour leverage lifting devices machines mechanical lifting device metropolis metropolitan modern china office block office towers olympics preparation pulleys scaffold piles scaffolding skyline skyscrapers steel strong tall tall crane tools tower cranes under construction upward view architectural building site capitals cityscape construct construction daytime develop development full length full lengths glazed glazing height industrial industry landscape metal nobody offices outdoors outside stock image stock photo stock photograph travel photo travel photograph travel photography travel stock travels urban living vertical travel travel destinations travel destination building exterior re development building works color image color colour tourism destination no people