If your dream about a day care center featured children who were old enough to walk, it is a good omen of happiness in family affairs and/or school, whichever concerns you most.
If the children at the day care center were babies, the meaning depends on how they behaved.
If they were happy or cute, good things are coming to you through the help of friends. However, if the babies were ugly or in any way displeasing to you, look out for treachery in someone you trust. Helpless or sick babies are generally a warning of difficulties ahead, so be cautious in your friendship and love affairs.... My Dream Interpretation
Dreams of the World Trade Center or of the twin towers represent your financial structures. And though they may fall, your inner wealth and well-being cannot be shaken.
The tower in the Tarot represents destruction that precedes transformation and new beginnings. Twin towers can also represent that which holds up the temple of your being, the tension of opposites, and the integration of your polarities-the dark and light, the masculine and feminine, etc. See Tower.... Strangest Dream Explanations