Monday - Meteor Crater

Arizona has one of the best preserved meteor impact sites in the
world. This giant "hole in the ground" is about 40 mile south east of
Flagstaff. Caused by a meteor measuring about 150ft across, when it
hit the ground it left a dent in the earth nearly 4,000 ft wide and
750 ft deep. Maybe that's because it was traveling at about 40,000
mph! At that speed you could get from Paris to New York on 5 mins.
Check it out on Google Earth to get a birds eye view of the hole.