text: Had a buy one get one free coupon and it was during the day so it only cost around but we waited in line for about min only to go to a small observation deck It was an impressive view but one that could be obtained from a hotel window nnIf you have a coupon and some free time it may be enjoyable However this is something you could skip Spend the time just walking around the Paris hotel lobby as I found that more exciting and it cost nothing