Grom.  A gelateria I have been hearing about for months and was excited
to try.  They have various locations in Italy.  We first tried it in Siena and
then tasted again in Florence.  
Delicious gelato.  I might even venture to say it
was the best we had (yes- there is such a thing as
bad gelato).  Also tried their hot chocolate on a
chilly night- rich, thick, and flavorful.
Mother enjoyed hazelnut-chocolate and lemon.  She prefers a combo of the
sweet and tart.  Grom also changes their flavor menu monthly.

Italy (31 locations/cities)
Malibu, New York, Paris, Tokyo