How an urban legend came true during the 1930s when swarms of alligators were discovered to be living underneath the busy streets of New York City. Modern herpetologists and explorers search for alligators in the sewers of the city today.

Featuring cutting edge animation and the expertise of military historians, explore the strategies, tactics and weapons used by ancient commanders including Hannibal, David, Caesar and Alexander.

Historical clues and the expertise of geologists reveal how powerful forces shaped the planet, going back 4.5 billion years to tell the story of how the earth was made. 

Ancient Aliens examines 75 million years of the most credible alien evidence here on Earth, from the age of the dinosaurs, to ancient Egypt, to the skies over the western desert in the present day US.

A look ahead at the cataclysmic events that could extinguish the human race.

The series reveals how many of today's technological achievements were actually developed centuries ago. New science uncovers a lost world more like our own than suspected, and reveals how modern technology has its blueprint in the ancient world.

Host Bobby Bognar explores Italian cuisine across the U.S., sourcing ingredients, pasta secrets in NY, vinegars, wines in CA, and dessert wisdom from NJ to Costa Rica.

Below each major city lies city upon city - each with its fascinating and unknown history. This series will reveal the technological marvels that allowed the construction of one city upon another - literally.

How an urban legend came true during the 1930s when swarms of alligators were discovered to be living underneath the busy streets of New York City. Modern herpetologists and explorers search for alligators in the sewers of the city today.

Featuring cutting edge animation and the expertise of military historians, explore the strategies, tactics and weapons used by ancient commanders including Hannibal, David, Caesar and Alexander.

Historical clues and the expertise of geologists reveal how powerful forces shaped the planet, going back 4.5 billion years to tell the story of how the earth was made. 

Ancient Aliens examines 75 million years of the most credible alien evidence here on Earth, from the age of the dinosaurs, to ancient Egypt, to the skies over the western desert in the present day US.

A look ahead at the cataclysmic events that could extinguish the human race.

The series reveals how many of today's technological achievements were actually developed centuries ago. New science uncovers a lost world more like our own than suspected, and reveals how modern technology has its blueprint in the ancient world.

Host Bobby Bognar explores Italian cuisine across the U.S., sourcing ingredients, pasta secrets in NY, vinegars, wines in CA, and dessert wisdom from NJ to Costa Rica.

Below each major city lies city upon city - each with its fascinating and unknown history. This series will reveal the technological marvels that allowed the construction of one city upon another - literally.

How an urban legend came true during the 1930s when swarms of alligators were discovered to be living underneath the busy streets of New York City. Modern herpetologists and explorers search for alligators in the sewers of the city today.