The original walkthrough was done by Steve Rusher. It has been HTML-ized and slightly edited by me.
Click here for the full walkthrough, without pictures.
Part 1 (up till the Incan Ruins)
Part 2 (Incan Ruins, Gold Ship, Adrift, Diamond Coast)
Part 3 (Freejia)
Part 4 (Diamond Mine, Freejia, Nazca)
Part 5 (Sky Garden)
Part 6 (Sky Garden)
Part 7 (Seaside Palace, Mu)
Part 8 (Mu)
Part 9 (Seaside Tunnel, Angel Village, Watermia)
Part 10 (Great Wall of China)
Part 11 (Euro, Mountain Temple)
Part 12 (Natives' Village, Ankor Wat)
Part 13 (Dao, Pyramid, Tower of Babel, Gem's Mansion, End)
Disclaimer (Steve Rusher)