The Colombo is city of Srilanka. It is in western province of the country. the city edge is beautiful sea, with number of star class hotels.also you can have traditional warm welcome services from srilankan citizens.
from Colombo there are train,bus and taxi services available for any part of the country. also you can enjoy traditional sibilance foods also at very low cost. the Colombo living cost also very law comparing other cities of the world. in the city you can find Zoological garden, Meusiam, Parliament, traditional temples, public gardens, withing a 10km distance. 
too dirty everywhere is dirty ,can't walk alone too dangerous thieves beggers people stare at you like you are out of this world I really hated there and am so sorry I spend my money and time4 there my husband and I with our 6 year old daughter stayed in colombo hilton hotel couldn't go out of the hotel everywhere was dirty,everybody tries to take money of you the shops were full of stuck and cheap clothes and everything even the restaurants were bad ,went to pizza hut was dirty bad service went to the zoo but people came after us looking at my daughter because of her white skin and curly long hair !!! had to come back to the hotel ...the trip was terrible will never go back there,we were stopped constantly by the armed police to ask questions bombs were blowen everywhere and no security was present.