The best destination to visit is Paris. The climate, annual temperature of around 12C and winter is the season that has rarely  sunshine. The summer is very warm.
The most interesting place is Grand Palais and Palais Garnier. Also you  can visit  Notre Dame Paris. You can get around  by metro,  bus,taxi. Paris has many nightclups on the centralrestaurants, bar-cafe, casino, theatres, cinema, museum, opera.I thinkis a good place to go and you will not regred.