TV Schedule for Smithsonian Channel USA - Pacific HD

How Did They Build That? Canyons & Curves

Engineers grapple with an apartment building, ripped apart by a man-made canyon; the Gateway Arch takes shape in St. Louis; an unpromising plot in Copenhagen, Denmark, is transformed by a gleaming new triangular office.

How Did They Build That? Supertalls & Firehouses

Alien port authority in Belgium; ultrathin skyscraper in Manhattan; hanging museum in Scotland.

How Did They Build That? Boxes & Birds

The American Museum of Natural History in NYC gets a cave-like extension; an arts center inspired by migrating birds is built on a lake in China; Boston University gains a fossil-free, Jenga-like tower.

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? 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 Fix That? Panama Canal Railway

A ride on the Panama Canal Railway reveals the track repairs, engine overhauls and dangerous searches involved in keeping vital freight runs rolling.

How Did They Fix That? Heli-Logger

A crew and its massive air crane helicopter haul millions of pounds of timber while battling the elements and handling emergency repairs.

How Did They Fix That? Heavy Cargo Express

A ride through Eastern Europe aboard heavy-hauling trains shows the logistical and mechanical challenges of making a multimillion-dollar cargo delivery.

How Did They Fix That? Euro Hauler

Following a million-dollar freight run across four European countries and meeting the drivers, engineers and maintenance teams who keep the train running.

How Did They Build That? Parking & Sparkling

A dazzling new 1400 foot tapering skyscraper is built right next to New York's Grand Central. A curving wine museum requires ingenious engineering in Bordeaux, France. And possibly the world's most glamorous parking garage.

How Did They Build That? 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 glass offices; a needle-thin tower stacks 28 apartments onto a 21ft-wide plot in Melbourne, Australia.

How Did They Build That? 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.

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.

How Did They Build That? Breakthroughs & Bridges

Visiting London's Gherkin, Seattle's Evergreen Point Floating Bridge and Lyon's Musée des Confluences to uncover how and why they were built.

Air Disasters Death and Denial

In 1999, EgyptAir Flight 990 crashed into the Atlantic Ocean while flying from New York City to Cairo, killing all 217 people on board; the cause of the crash is disputed.

Air Disasters Alarming Silence

Northwest Airlines Flight 255 crashes shortly after take-off in Detroit in 1987; a fatal preflight error caused the second-deadliest plane crash in the U.S. history.

Air Disasters Engine Gone

Three crews experience the same devastating event; with radically different outcomes when an engine falls off their commercial airplane.

Air Disasters Stealth Bomber Down

When a USAF stealth bomber crashes after takeoff, investigators search for a reason.

Air Disasters Turboprop Terror

When a turboprop stalls and crashes into a North Carolina forest, investigators resort to a risky test flight-and uncover an industry-wide safety problem.

Air Disasters Mayday Munich

A plane with members of the Manchester United football team crashes while heading home from Yugoslavia, killing 23 aboard.

Air Disasters Focused on Failure

On 28 December 1978, the crew of United Airlines Flight 173 are preoccupied with a landing gear problem as the aircraft circles in a holding pattern in the vicinity of Portland, Oregon; it runs out of fuel and crashes in a sparsely populated area.