Liesl Clark

National Geographic: Surviving Everest

Lost On Everest

Killer Landslides

NOVA-Lost Treasures of Tibet

National Geographic - Everest 50 Years on the Mountain

Lost Cave Temples of the Himalaya

Cave People of the Himalaya

NOVA: Secrets of the Sky Tombs

Lost on Everest: The Search for Mallory and Irvine

Himalayan Megaquake