TV Schedule for Smithsonian Channel USA - Pacific HD

How Did They Build That? Heights & Balance

A 1.2-million-square-foot office building balances precariously on a 39-foot wide base in Chicago; a building named Pterodactyl lands on top of a Los Angeles parking garage; the world's longest suspension footbridge.

How Did They Build That? Super Stadiums & Extraordinary Elevators

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX; celebrate the ingenuity of the inexperienced crew that built a monumental skyscraper in Malta; visit a forest tower designed for testing elevators.

How Did They Build That? Fantastic & Futuristic

Challenges beset a sculptural new transportation hub for New York's World Trade Center; Amsterdam gains a building inspired by a mountain valley; a new launchpad for space travel prepares for liftoff in the New Mexico desert.

How Did They Build That? 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? 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? Cantilevers & Lifts

An unstable high rise, an otherworldly museum, and a towering cliffside elevator.

How Did They Fix That?

An in-depth look at how things are repaired.

How Did They Fix That? Reef Rescue

Mike in north eastern Australia, going on and under the water, into labs and onto construction projects working with specialized teams as they tackle the daunting challenge of saving dying coral on the incredible Great Barrier R.

How Did They Fix That? Snowbird Ski Resort

Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.

How Did They Fix That? UPS Worldport

Mike Davidson goes to the biggest automated package sorting facility in the world - UPS Worldport in Louisville, Kentucky. Two million packages go through here every day.

How Did They Build That? Ecobuilds & Earthquakes

Witness amazing buildings, bridges, lifts, and other structures that pushed structural concrete engineering to the edge.

How Did They Build That? High Waters & Harsh Winds

Defy gravity in an Amsterdam high-rise that hangs 164 feet above the water; marvel at three interconnected towers in Chicago that have a road running through them; examine the revolutionary framework of Paris' controversial Pompidou Centre.

How Did They Build That? Space Stations and Super

Celebrating one of humanities biggest engineering achievements, the International Space Station, a meteor proof lab bigger than a football field, constructed by astronauts traveling 250 miles above us at 17,500 miles an hour.

How Did They Build That? Floating Parks & Upcycled Towers

On inadequate foundations, San Francisco's MOMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five acre park is created.

How Did They Build That? Biomes & Rebuilds

A London railway station; giant Singapore biodomes; eye-catching hospital in Las Vegas.

Air Disasters Pitch Battle

Colgan Air 9446 nosedives into the waters off Cape Cod just minutes after takeoff following a four-day maintenance stop.

Air Disasters Deadly Pitch

A team of experts investigates in detail the carnage of a cargo plane; an anonymous tip helps explain why a cargo plane crashed just moments after taking off from Miami.

Air Disasters Communication Breakdown

A look at three deadly air disasters that are caused by misunderstandings between pilots and air traffic controllers.

Air Disasters Caught in a Jam

A commuter turboprop crashes onto hilly terrain in New Zealand; the search for answers inevitably leads to the cockpit.

Air Disasters Speed Trap

Joining NTSB and military experts as they work together to uncover how a fighter jet could collide with a civilian flight.

Air Disasters Meltdown Over Kathmandu

Landing at one of the world's most challenging airports, a passenger plane comes in like a fighter jet and crashes, killing 51 of the 71 people aboard.

Air Disasters Vertigo

On Jan. 3, 2004, Flash Airlines Flight 604 banks to the right just after takeoff and crashes into the Red Sea, killing all 148 people on board.

Air Disasters Lapse in Security

Three horrific aviation disasters are all linked to breakdowns in vital security measures.

Air Disasters Delivery to Disaster

History's most terrifying air disasters, and the investigations that followed, are revisited and reexamined.