How Did They Fix That?

S3, EP1 "US Coast Guard: Safeguarding The Seas"

Mike helps fix the vessels that the U.S. Coast Guard use to keep the oceans safe; he replaces key parts of ship engines, removes a large crane from a buoy tender, and fixes a helicopter for a critical exercise.

How Did They Build That?

S3, EP8 "Subways & Sightlines"

A sculptural high-rise with rippling balconies breaks the mold in Chicago; Mammoth machines bore 26 miles of tunnels for an underground railroad beneath London's city streets.

How Did They Build That?

S2, EP9 "Mirrors & Marble"

Visiting Australia's One Central Park, the Oslo Opera House and the California Academy of Sciences in San Francisco to reveal their architectural secrets.

How Did They Build That?

S2, EP3 "Retrofits & Airport Glitz"

Visiting the Hearst Tower in Manhattan and Jewel Changi Airport in Singapore to understand how they were built; covering how designers and engineers attempt to create a museum worthy of Salvador Dali in Florida.

How Did They Build That?

S4, EP6 "Shipyards & Slender Builds"

A 284ft wooden skyscraper built from 1,200 bespoke pieces tests fire safety limits in Milwaukee. A decaying Amsterdam crane track transforms into elegant glass offices.

How Did They Build That?

S4, EP2 "Medals & Marinas"

Paying tribute to the brave, gravity-defying design of the U.S. National Medal of Honor Museum; traveling to Singapore for a look at a leaning tower of gambling, then exploring a New York City office building that lets the sun shine through.

Air Disasters

S2, EP403 "Deadly Departure"

After a DC-8 cargo plane with only three working engines crashes on takeoff in Kansas City, investigators uncover a flaw in the pilots' training.

Air Disasters

S20, EP29 "Splash Down"

Three last-resort water landings, all handled differently yet each one crucial to improving the outcomes of ditching on open water.

Aerial America

S1, EP38 "Texas"

The Lone Star's rugged canyons, historic ranches and modern cities.

Aerial America

S1, EP69 "Yellowstone"

An aerial tour of the world's first national park showcases Yellowstone's diverse wildlife and rich history.

Aerial America

S1, EP30 "Arizona"

A flight over Arizona explores the state's storied past, architectural achievements and landscapes, including America's natural wonder, the Grand Canyon.

Air Disasters

S20, EP3 "Collision Course"

A passenger ferry sinks after crashing into rocks off the coast of a Greek island, killing 82; it leads to a shocking investigation.

Air Disasters

S2, EP402 "Disaster At Dutch Harbor"

While landing at a notoriously tricky Alaskan island airport, the pilots of a twin turboprop can't stop their plane.

Air Disasters

S2, EP403 "Deadly Departure"

After a DC-8 cargo plane with only three working engines crashes on takeoff in Kansas City, investigators uncover a flaw in the pilots' training.

Air Disasters

S3, EP6 "Break Up Over Texas"

Near the end of its flight, Continental Express Flight 2574 suffers wing damage and goes into a dive falling out of the sky.

Air Disasters

S12, EP1 "Nuts and Bolts"

When an American cargo plane crashes moments after takeoff, investigators uncover a systemic problem with aircraft maintenance.

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