TV Guide History Tuesday

For centuries, humans have pondered a profound question: Are we alone in the universe? From ancient philosophers imagining other inhabited worlds.

Exploring claims that various stone monuments across the world were actually created by aliens from outer space.

Exploring theories about Puma Punku, an ancient site in Bolivia, which claim it has a connection with mystical aliens from outer space.

Pastor Doug Batchelor presents a studious hour on spiritually relevant topics such as Bible prophecy, the gospel message and the Holy Spirit.

Dr. David Jeremiah, senior pastor of Shadow Mountain Community Church in El Cajon, Calif., delivers the unchanging Word of God to an ever-changing world.

A look at human rituals through history, why ancient and modern cultures performed them, and what actual effects they may have on the world.

Theorists discuss whether or not certain mythical monsters might instead be takes on animals from the past, some of whom may survive even into the modern day.

A look at how humans treat death, focusing on how many cultures' beliefs in the power of bones reflects their beliefs about the afterlife.

Examining the history of holy relics, sacred items believed to possess supernatural or spiritual power, and what they were used for in the past.

Researchers explore some of the other kinds of dangerous plagues of the past and the scientific progress that was made to combat their deadly effects.

Exploring the histories of ancient objects and theories about their potential.

Predicting humanity's demise is discussed, perhaps it will be asteroids, black holes, or something even more mysterious that will wipe people out.

Exploring myths and legends of the early American frontier from the 17th to 20th centuries.

Many wonder how seemingly inexplicable escape stories through history were accomplished, including the feats performed by the late magician Harry Houdini.

Exploring legendary islands across the world with morbid histories and examining claims that the islands are cursed, haunted, or otherwise magical.

As the Laginas and the team relaunch their search on Oak Island, a stunning revelation may help prove the Knights Templar were connected to the mystery.

After the team makes an ancient discovery on Lot 5, they learn that the fabled treasure could be worth more than anyone imagined.

New discoveries in the Swamp and Money Pit area lead to a potentially history-changing revelation for the team.

As the team drills deeper than ever into the Money Pit area, a find in the swamp could have explosive implications.

Some secrets refuse to stay buried. Whether it's illicit cargo in a frozen lake, a stolen masterpiece worth millions, or a brothel hidden in the shadow.

After the team makes an ancient discovery on Lot 5, they learn that the fabled treasure could be worth more than anyone imagined.

New discoveries in the Swamp and Money Pit area lead to a potentially history-changing revelation for the team.

As the team drills deeper than ever into the Money Pit area, a find in the swamp could have explosive implications.

Some secrets refuse to stay buried. Whether it's illicit cargo in a frozen lake, a stolen masterpiece worth millions, or a brothel hidden in the shadow.

After the team makes an ancient discovery on Lot 5, they learn that the fabled treasure could be worth more than anyone imagined.