Best tree i ever seen

i dont know what is the name of this tree but it does caught my attention. See, it grows most of my neighbors front yard but what impress me is that, this tree is so rare. this is the only that that I know of, who produce the flowers first before the leaf. This is what the tree will look like when the flowers starts to grow of course after the winter season. at winter, the tree is so bald. no leaves or flowers that can been seen on it. and when the month of march or april comes in, there this tree start to produced its flowers. it really looks so cool for the flowers will make the tree looks white and when you look at it in a distance you will think that the tree was convered with a snow. so cool huh. Tomorrow i will post here the picture of the tree that was already covered by its green colored leaf. The white beautifully looking flowers was now become a green and normal looking leaf. so odd for me.