Hoover Dam is regarded as an engineering masterpiece and an America icon. But what if it did not exist today? How would engineers build it today? In this one hour program, we ask a team of engineers what they would do the same and what they would do differently... as we re-invent Hoover Dam.

Plot: Massive construction projects are examined and detailed.

Adolf Hitler caused the deaths of fifty million people. An entire nation followed him to ruin. Over a tumultuous 12 years Adolf Hitler went from being a minor rabble-rousing politician, to supreme leader of Nazi Germany. He was hated by those he persecuted, and even by some of his own commanders - yet in twenty-five years no one managed to kill him. This program shows how Hitler's bodyguards helped him cheat death on many occasions.

David comes face to face with a monitor lizard that stands on tiptoe, is flashed at by anole lizards and uses a rod and line to tempt a timid skink out of its burrow. Other scaly stars include jacky lizards that wave, wrestling beaded lizards and the largest chameleons in the world jousting in the trees. He also encounters the world's smallest chameleon, no bigger than his thumbnail, and the biggest lizard in Australia.

The visual devices used by Tony Blair and George Bush to get themselves elected and maintain power, come not from modern times, but a world that is thousands of years old. How Art Made the World ventures back to the creation of Stonehenge and the reign of Alexander the Great to reveal how imagery became an indispensable weapon in every leader's political armoury.

On the momentous occasion of the Hubble Space Telescope's 15-year anniversary, the European Space Agency released this commemorative documentary looking back of the history of discovery that the telescope has facilitated. Retrace the story of its successes and difficulties, illustrated by state-of-the-art computer animation, as well as spellbinding footage photographs taken from Hubble, much of which has been previously unseen until now. The film presents some of the most fascinating facts about our universe that Hubble has uncovered, and explains things like wormholes, black monsters, and event horizons. All of this is accompanied by a score that captures the grand majesty of the film's subject matter.

Child psychologist Laverne Antrobus goes on a quest to discover why dads are so important. Through a series of extraordinary experiments she discovers how radical changes in a man's hormones during his partner's pregnancy actually serve to boost his nurturing instincts. Laverne's final investigation is perhaps most intriguing of all: can a father's relationship with his daughter really influence when she reaches puberty and who she eventually marries?

Child psychologist Laverne Antrobus goes on a quest to discover why dads are so important. Through a series of extraordinary experiments she discovers how radical changes in a man's hormones during his partner's pregnancy actually serve to boost his nurturing instincts. Laverne's final investigation is perhaps most intriguing of all: can a father's relationship with his daughter really influence when she reaches puberty and who she eventually marries?

On the momentous occasion of the Hubble Space Telescope's 15-year anniversary, the European Space Agency released this commemorative documentary looking back of the history of discovery that the telescope has facilitated. Retrace the story of its successes and difficulties, illustrated by state-of-the-art computer animation, as well as spellbinding footage photographs taken from Hubble, much of which has been previously unseen until now. The film presents some of the most fascinating facts about our universe that Hubble has uncovered, and explains things like wormholes, black monsters, and event horizons. All of this is accompanied by a score that captures the grand majesty of the film's subject matter.

10 WAYS TO KILL BIN LADEN recaps the 10 boldest, most ingenious missions employed thus far to capture or kill the Al Qaeda leader. The first such operation dates back to 1998 and the Clinton administration, before the Sept. 11, 2001 attacks made bin Laden the most notorious and most hunted man in the world. The special also dissects why these missions were ultimately and often frustratingly unsuccessful.

Cleopatra - the most famous woman in history. We know her as a great queen, a beautiful lover and a political schemer. For 2,000 years almost all evidence of her has disappeared - until now. In one of the world's most exciting finds, archaeologists believe they have discovered the skeleton of her sister, murdered by Cleopatra and Mark Antony. From Egypt to Turkey, Neil Oliver investigates the story of a ruthless queen who would kill her own siblings for power. This is the portrait of a killer.

The eighth and final match of the last-16 stage comes from the Cape Town Stadium in South Africa. The draw for the quarter-finals will be decided following the conclusion of tonight's encounter. Spain were the pre-tournament favourites, but their campaign got off to a bad start when they lost to Switzerland, though victories over Honduras and Chile in their next two games were enough for them to top a closely-fought Group H. Portugal reached the semi-finals four years ago before losing to eventual runners-up France, and they finished second in Group G this time around without losing a game or conceding a goal. Presented by Gary Lineker.