As we all know that the varanasi is a very old city and also a holy city , I will describe here some important tourist place in varanasi and there some important features -
Assi ghar - I think this one is the most important palce in varanasi to nevar forget to visit whenever you come to varanasi , situated in the bank of holy river Ganga , the Devadiwali of assi Ghat is world famous at this event all the ghar are decorated with beautiful light's and saveral types of event take place .
Bhu -this is the world famous University local as well as foreign student's are involved in different types of programs , new vishwanath temple is also here , campus of bhu is full of grennary.
Vishwanath temple - the famous vishwanath temple of lord Shiva is also here , where lakhs of people from all over india .
Saranath - this is situated out side of the city , but this is also the best place near by Varanasi to visit.
Apart from this , some places are also outside of the varanasi up to few kilometres like Lakhanayadari , Devadari which has a beautiful location of Vindhyachal hills.
The population density of varanasi is very high so , roads are very conjusted and and roads are not so clean.
I think this article will help you lot.