Smithsonian Channel

A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

Phil Risko's team at Northstar works fast to refloat a trawler that's been blown onto the shore of a national park in New Jersey; the team improvises to get it back to sea before it suffers further damage.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

Historical and modern examinations of constellations.

Paid programming.

Mike in northeastern Australia, goes on and under the water, into labs and onto construction projects working with specialized teams; they tackle the challenge of saving dying coral on the Great Barrier Reef.

Mike joins crews as they build the world's longest railway tunnel in the Alps, fixing gridlock through the infamous Brenner Pass by drilling, blasting and digging their way through the mountains.

A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage; they fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage; they fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage; they fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

At the mouth of the Suez Canal, Lino Arosemena and his crew have a monster repair job of removing and refitting a 20-ton propeller.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

At the mouth of the Suez Canal, Lino Arosemena and his crew have a monster repair job of removing and refitting a 20-ton propeller.

The Pyramid of Khufu is the only one of the Seven Wonders of the Ancient World which can still be seen in its original state.

At the heart of Saqqara, the largest necropolis in Egypt, is the Step Pyramid of Djoser, built around 2600 BC.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage; they fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.

A new Olympic and Paralympic museum tests engineers with its trailblazing accessible design. A dazzling curved glass skyscraper battles gravity in Milan. And a student center built under a noisy railroad.

Mike works with repair and construction teams at Dreamworld, Australia's largest theme park, after a cyclone caused $4M in damage; they fix scream machines and finish a $50M expansion featuring the world's first triple switch rollercoaster.

Salute the Boeing 747, a massive airliner designed to carry more passengers than was ever thought possible in the 1960s. Discover the engineering innovations and the high-stakes risks it took to bring the aptly named Queen of the Skies to life.

Climbers landing on a glacier at the foot of Mount Denali, follow in the footsteps of aviation pioneers. A swarm of 600,000 bees threatens the plane's structural integrity and veterinarians battling a rabies epidemic go up again.

Viewing Northern Italy from the air; the fashion capital of Milan; the canals of Venice; the peaks of the Dolomites; the colorful coast of Cinque Terre.

Salute the Boeing 747, a massive airliner designed to carry more passengers than was ever thought possible in the 1960s. Discover the engineering innovations and the high-stakes risks it took to bring the aptly named Queen of the Skies to life.

Climbers landing on a glacier at the foot of Mount Denali, follow in the footsteps of aviation pioneers. A swarm of 600,000 bees threatens the plane's structural integrity and veterinarians battling a rabies epidemic go up again.