TV Guide National Geographic Channel

Around the world, architectural marvels stand as conduits to the cosmos.

In the spring of 1944, German forces expect to be attacked by Allied forces, so they make preparations in the time leading up to the D-Day attack.

A close look is taken at the final months of World War II for Japan, with emphasis on how American forces threatened to invade Japan.

Adolf Hitler's final attempt to win World War II is examined to show how the Nazi forces carried out a surprise winter attack that resulted in major war crimes.

Japanese soldiers build a large structure on the Pacific island of Peleliu in 1944 as part of a defensive operation that kills thousands of American soldiers.

Visit Cambodia, where record droughts have left a trade hub exposed; examine a submerged funerary complex in Greece, ancient mammal footprints.

An exploration into a medieval shipwreck; a Greek version of Atlantis that was submerged after a tsunami, and a Mexican temple unearthed after a drought.

Explorers find hidden treasures such as kids' drawings on the walls of Pompeii, a mythical sculpture uncovered in the aftermath of an Indian tsunami.

Inspect the wreck of the Mary Celestia, a Civil War ship raised by a hurricane; encounter imperial relics exposed by a drought in Iraq.

Ranking history's ten most dramatic collapses, including towers bridges and cranes.

Exploring the top ten tragic expeditions, including Amelia Earhart, the Mount Everest disaster, and the man who died while searching for the Lost City of Z.

In space, tiny miscalculations can cause tragic disasters.

Exploring the top ten collisions, including trains, planes and ships colliding.

Exploring the ten worst crashes, because in motorsports, tiny mistakes can cause disaster.

Featuring history's ten worst dam failures, because when a dam fails, catastrophe follows.

Ranking history's ten most dramatic global disasters, from planes to trains.

Presenting ten of history's worst maritime disasters at sea, from the Titanic to the Lusitania.

Explore Earth's harshest places, where beauty, danger and survival collide.

Examine infamous cults, where devotion turns dangerous and tragedy unfolds.

Presenting ten of history's worst maritime disasters at sea, from the Titanic to the Lusitania.

Explore Earth's harshest places, where beauty, danger and survival collide.

Examine infamous cults, where devotion turns dangerous and tragedy unfolds.

Inspect the wreck of the Mary Celestia, a Civil War ship raised by a hurricane; encounter imperial relics exposed by a drought in Iraq.

Explorers find hidden treasures such as kids' drawings on the walls of Pompeii, a mythical sculpture uncovered in the aftermath of an Indian tsunami.

An exploration into a medieval shipwreck; a Greek version of Atlantis that was submerged after a tsunami, and a Mexican temple unearthed after a drought.

Visit Cambodia, where record droughts have left a trade hub exposed; examine a submerged funerary complex in Greece, ancient mammal footprints.