&hint1=I am a small part of a larger monument&
&hint2=I am by the side of a national highway&
&hint3=I mark the position of the rising sun at the summer solstice&
&hint4=I am a single stone&
&choices=Heelstone;Standing stones;Head of Christ;Monk's Mound;Stone Enclosure: Rock Rings;Lamassu&
&answer=Heelstone&
&search=Heelstone stonehenge&
&title=Heelstone&
&artist=&
&medium=&
&date=c.2500-1300 BCE&
&location=Wiltshire, England&
&dimensions=&