Don't focus too much on the "amazing" part, because they're still going to start out as saplings and take time to grow. What makes them impressive when you see

Don't focus too much on the "amazing" part, because they're still going to start out as saplings and take time to grow. What makes them impressive when you see them in person is that the ones you're looking at have been growing for >1000 years - the much younger ones all around those are much less impressive, though apparently some can reach 30 feet in ~10 years. They may also have some requirements to thrive that aren't that common - IIRC, giant sequoias mostly grow in a fairly thin layer of dirt on top of rock, which means there's also quite a bit of water (slowly) flowing through that dirt since there's noplace for it to go. Not sure how much of that applies to the coastal redwoods being discussed here (they're related, and the common and genus names are confusing - these redwoods are genus Sequoia, but the giant sequoia are actually a different genus). There's a fair amount of information online about growing either from seed or via cuttings. One key piece of advice: plan for that growth and don't plant within 10m of structures that you're going to want to keep long-term.