By Matt Cain and Sanghamitra Sen.
Each puzzle is associated with a picture of a work of art. The dates of each artist's life and the date of the work are given. These are the names of the artists and the works:
Picasso Enfant a la Poupee Rodin Age of Bronze O'Keeffe Ram's Head, White Hollyhock and Little Hills Friedman There Man Ray Hands Oldenberg Soft Screw Rosenquist Circles of Confusion Ingres Entrance of Dauphin, future Charles V, to Paris Arp Nude Rembrandt Three Trees Toulouse-Lautrec Edmee Lescot Yoshida Rhinoceros
Reading across in the order the puzzles appear on the map, the initials of the names of the artists spell PROFMORIARTY. The initials of the titles of the artworks spell EARTHSCENTER. Therefore Moriarty's hideout is in the center of the earth.