The United States has long been an attractive destination for travellers, as well as long- and short-term migrants, such as students, seasonal workers, or au pairs. In a qualitative longitudinal study of German and Austrian au pairs, I have tried to analyse the image they have of the receiving country, how these images change over time and what they have in common. Using Moscovici's concept of figurative kernel, I suggest that all images share the 'grandness' as an underlying, historically stable, higher-order unit of thought. Positive aspects of this grandness are manifested in the American landmarks of 'big shape' and negative aspects concern assertions like America's 'great power claims'.