Manfred Christ · Writer
Sealed
2018
The Sun: Inferno in the Sky
Writer
Sealed
2017
Der Mond - Unser Tor ins All
Writer
Sealed
2015
Secrets of the Nazi Treasure
Writer
Vienna's Water
Sealed
2010
Vienna's Water
Writer
Sealed
2006
Salzburg - In the Shadow of the Crags
Writer
Sealed
2005
Wachau - Valley of Golden Magic
Writer
Vienna's Forests - Jewels of Green
Sealed
2005
Vienna's Forests - Jewels of Green
Writer
Sealed
2000
Glockner - The Black Mountain
Writer
Lech - the last Wild River
Sealed
1999
Lech - the last Wild River
Writer
Sealed
1997
St. Stephen's: The Living Cathedral
Writer