huge circular craft, had a dome with red lights at bottom ; flying at level of top of a telephone pole, turned 90 degrees in an instant

The sighting occurred in a suburban development consisting of 60 by 100 ft plots. My cousin & I, approx. 10 & 11 yrs old, playing at the end of my driveway, heard a noise and looked up to see a very, very, very large object (as described above), about 5 houses down the block. moving north ready to cross my street. When it reached the middle of the street, it made a sharp, 90 degree turn in an instant. It then began descending and moving toward us.
When this object reached 3 houses away, we became very frightened and said "that thing is coming for us" We ran up my driveway at 4019 Wicks to the backyard, screaming for my mother. As we reached my backyard, the noise it was making became much louder. We looked in the direction of the noise, still screaming , to see this thing flying just above the roof of 4027 Wicks (my cousin's house). I cannot tell in feet how large this object was, but it was considerably larger than my cousin's house. I cannot adequately describe how slowly this object moved as it skimmed the roof and disappeared, still moving north at treetop level. Due to tree cover, we could not see what happened after this.