Tracking Marco Polo
1964
The Golden Antilles
1970
Explorers of the Mississippi
1970
Vanishing Primitive Man
1973
The Oriental Adventure
1976
The Brendan Voyage
1978
The Sindbad Voyage
1982
The Jason Voyage: The Quest for the Golden Fleece
1985
The Ulysses Voyage
1987
Crusader
1989
In Search of Genghis Khan
1991
The China Voyage: Across The Pacific By Bamboo Raft
1994
The Spice Islands Voyage: The Quest for Alfred Wallace, The Man Who Shared Darwin's Discovery of Evolution
1997
In Search of Robinson Crusoe / Seeking Robinson Crusoe
2001
In Search of Moby Dick
2002
The African Adventure
2019