The Thin Red Line
by Greg Lohman and Graham Wright
Answer: HISTORIAN
The photos are all taken on the Freedom Trail, a trail through Boston marked with a red line. The photos can be placed in that order starting in the southwest. Each photo shows three letters of a path on another red line, the MBTA's Red Line train. Taking the letter after the three-letter block for each stop in Freedom Trail order spells LIVY OR HERODOTUS, E.G. This clues the answer HISTORIAN.
| Freedom Trail Site | Trigram | Red Line Stop | Next Letter |
| Boston Common | NHI | Savin Hill | L |
| State House | DAV | Davis | I |
| Park Street Church | GRO | Cedar Grove | V |
| Granary Burying Ground | DWA | Broadway | Y |
| King's Chapel | SHM | Ashmont | O |
| King's Chapel Burying Ground | KST | Park Street | R |
| First Public School Site/Ben Franklin Statue | OUT | South Station | H |
| Old Corner Bookstore | WIF | Alewife | E |
| Old South Meeting House | INT | Braintree | R |
| Old State House | WNT | Downtown Crossing | O |
| Site of the Boston Massacre | VAR | Harvard Square | D |
| Faneuil Hall | DSC | Fields Corner | O |
| Paul Revere House | WMU | Shawmut | T |
| Old North Church | JFK | JFK/UMass | U |
| Copp's Hill Burying Ground | DAM | Quincy Adams | S |
| USS Constitution | NDR | Andrew | E |
| Bunker Hill Monument | ESM | Charles/MGH | G |
