Leading German factual and entertainment distributor ZDF Enterprises announces the sale of five films to US network Smithsonian Channel. The five projects span the globe, cover diverse areas, and investigate historical mysteries from pre-Columbian Nazca civilization to the attempt to assassinate Hitler in 1944. All the films highlight both networks' continuing commitment to high quality historical and science programming.

"I'm very pleased with the relationship that ZDF and Smithsonian Channel have forged since their launch in 2007," said Fred Burcksen, ZDF Enterprises' VP Distribution, Merchandising and Coproductions. "The interest in intelligent factual programming is one that appeals to viewers worldwide, and we are committed to working with broadcasters like Smithsonian Channel who can reach new audiences."

The five pack of films were all created and produced by German filmmakers: Big Bang in Tunguska, The Secrets of the Taj Mahal, North Pole Conspiracy, Stauffenberg: The True Story, and the Secret of Nazca.

1. Big Bang in Tunguska
   Has been called "the Russian Roswell" - an explosion 1000 times more powerful than the Hiroshima atomic bomb, happened in Tunguska, Siberia, in June 1908. Scientists have long puzzled over what happened to 830 square miles of forest that were flattened in an instant. New science sheds light on an old mystery.
2. The Secret of Nazca
   One of the world's great mysteries indelibly etched into the Peruvian desert, the Nazca Lines are remants of a once great civilization. This documentary incorporates the latest forensic research to show how the patterns were most likely dug to appease the gods and beg them to send rain. The drawings document a change of climate that transformed a once flourishing area into a desert.
3. Secrets of the Taj Mahal
   Considered one of the eight Wonders of the World. This architectural masterpiece is the largest building ever dedicated to love. This documentary explores the story behind Mumtaz Mahal, beloved wife of Shah Jahan and the period from 1632-1653 when the famed dome structure was built.
4. North Pole Conspiracy
   An epic story of the dramatic race to be the first person to reach the North Pole. Two Americans, Commander Robert E. Peary and Frederick A. Cook, each claimed to have reached the North Pole first. But was there ever any proof either man reached his goal? This film brings new evidence to the discussion, and uncovers a story rich in intrigue.
5. Stauffenberg: The True Story (wt)
   The story of the man behind the attempt to assassinate Hitler and the subject of Tom Cruise's "Valkyrie" movie. Filled with unique first-hand accounts of the day the war almost changed its course. But for a twist of fate, the bomb Claus von Stauffenberg placed at Hitler's headquarters could have put an end to the war and the genocide.

"These are really exceptional films," said David Royle, Executive Vice President of Production and Programming for Smithsonian Network, "and they are a testament to ZDF's storytelling and commitment to the highest production values."