You can’t miss it, there’s a big lighthouse, followed by a big steam engine before you get to the museum building. If you go the Canadian Aviation and Space Museum on the same day, you can use a whole day parking ticket for both Ottawa museums so you don’t have to pay twice.
Lighthouse 
Museum entrance
The Canada Science and Technology Museum is a mish mash of a lot of topics such as transportation, natural sciences, astronomy, industry, music, and electricity. North American steam engines seem a lot larger than the ones in Europe, I’ve seen a few at DB Museums in Nürnberg and Halle in Germany.
Streamlined steam engine 
Cutaway of a Smart car
Being a car-oriented nation, my favourite display was on the construction and impact of the Trans-Canada highway in the 1960s. It detailed how the highway permitted travel across the provinces quickly and cheaply affording regular people the opportunity to go on holiday. Motels, diners, RVs, and camping culture followed suit.
Trans-Canada Highway exhibit 
Amphibious car
Another interesting area of the museum displays Canada’s contribution to the world of music. A Canadian invented the first electronic synthesise – the Electronic Sackbut. In the decades that followed, Canadian electronic synthesisers were so well known that their advertising didn’t even show the brand name.
Electronic Sackbut 
Astronomy exhibit
Other displays are pretty standard. There are a lot of interactive elements throughout the museum, but I didn’t bother pressing on any of them.
