How Did They Build That?

Smithsonian Channel

Series

2021

TVG

How-to

An exploration of how some of the world’s biggest man-made structures were built.

Trailer

Season 4

Why
follow?

Cast & Crew

Scott Rummel Host

⨁Full Cast & Crew

Where to Stream

2021 Series 4 Seasons40 Episodes

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Upcoming TV Airings

The airings below are based on a generic national schedule. Times and dates can vary by TV provider.

Wednesday, January 28

6:00 AM

Floating & Lifting

Season 3 • Episode 7

Architects and engineers build an eco-friendly convention center on Vancouver's waterfront.

Wednesday, January 28

7:00 AM

Parking & Sparkling

Season 3 • Episode 4

A 1400-foot tapering skyscraper is built right next to New York's Grand Central.

Wednesday, January 28

8:00 AM

Sky Gardens & Seismic Stations

Season 1 • Episode 7

A massive sky garden in Singapore, a tower in Brighton, and a railway station in Vesuvius.

Wednesday, January 28

9:00 AM

Tricks & Trains

Season 3 • Episode 6

An Olympic and Paralympic museum tests engineers; a curved glass skyscraper battles gravity.

Wednesday, January 28

10:00 AM

Steep & Stunning

Season 2 • Episode 7

The world's steepest mountain railway, a remodeled 145-year-old museum and a futuristic condo.

Wednesday, January 28

11:00 AM

Summit & Submerge

Season 4 • Episode 7

Building an eco-friendly visitor center in the permafrost on Colorado's Pikes Peak tests the team.

Wednesday, January 28

4:00 PM

Elevated & Elegant

Season 2 • Episode 4

Traveling from Canada to Belgium and to the U.S. to examine a school, museum and railway station.

Wednesday, January 28

5:00 PM

Skywalks & Suspensions

Season 2 • Episode 5

The design and engineering secrets behind the Grand Canyon Skywalk, Audain Museum and more.

Wednesday, January 28

6:00 PM

Viaducts & Hotels

Season 1 • Episode 4

A towering bridge in France; upside-down hotel in China; Italy's forest into the sky.

Wednesday, January 28

7:00 PM

Jungles & Bricks

Season 3 • Episode 2

Wednesday, January 28

8:00 PM

Canyons & Curves

Season 3 • Episode 3

Engineers grapple with an apartment building; the Gateway Arch takes shape in St. Louis.