Charlotte and Emily Brontë grew up in a parsonage on the edge of the Pennine moors, and the landscape of both novels still runs through the places they knew: a harsh school, a house with a famous library, a ruined farm on the heights.
The route starts at the Haworth parsonage, goes to the school behind Lowood, then up to the farms said to lie behind Thrushcross Grange and Wuthering Heights, and ends in Derbyshire at the hall behind Thornfield. Most identifications are traditional, not proven, and each pin says so.
A five-year-old orphan is led up a Swiss mountain path to live with a grandfather the whole village avoids. Johanna Spyri's 1881 novel follows Heidi from the alm to a grand house in Frankfurt, where homesickness sends her sleepwalking, and back to the mountain, where her friend Klara finally comes to visit.
The route runs from Ragaz, where Spyri wrote the book, through Maienfeld and the alm above it to Frankfurt and the tourist Heididorf. Spyri never names the exact hamlet or house, so most pins mark an area or a tradition.
Huck Finn fakes his own murder and, with Jim, who has run away from slavery, takes a raft down the Mississippi. Their goal is Cairo, where Jim would be a free man the minute he saw it. They miss it in the fog and drift on into slave country, past a feud, two con men and a farm with the book's last twist.
Twain built St. Petersburg from his boyhood town of Hannibal. Most places in the novel are invented, so each pin marks a real landmark or stand-in, and the Grangerfords' country and Bricksville stay off the map.