the dharahara tower , which was first built in 1832 , has been almost completely obliterated by nepal 's earthquake .
but several of the most recognisable buildings in the city , including towers and temples , now lie in rubble after a 7.8 magnitude earthquake hit the country .
more than 2,500 people died in the quake as buildings collapsed raining down debris on the streets below , while enormous avalanches on mount everest left climbers dead .