After winning the Nobel Prize, Dr. Hans Feldstadt retired to Junfrau in a sabbatical to continue his experiments undisturbed, under the alias of Dr. Klein. An encounter with Hulk led to Feldstadt's Gamma-based mutation and eventual death.
- 2 Appearances of Jungfrau
- Minor Appearances of Jungfrau
- Media Jungfrau was Mentioned in
- 1 Images featuring Jungfrau
- Location Gallery: Jungfrau