If you have just one day in your hand and you want to tour within Dhaka city than you can tour-
Bangladesh National Museum. It is in middle city. I visited several times till I feel interest to visit again. Portraits of different animals and bird’s seems live. Many things to see. It will take 4 hour’s to see well complete. The museum is well organized and displays have been housed chronologically in several departments like department of ethnography and decorative art, department of history and classical art, department of natural history, and department of contemporary and world civilization. The museum also has a rich conservation laboratory.