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frontpageMauiCat posted Oct 30, 2025 11:56 PM
frontpageMauiCat posted Oct 30, 2025 11:56 PM

879-Piece LEGO Ideas The Evolution of STEM Building Set (21355)

+ Free Shipping

$46

$80

42% off
Target
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Deal Details
Target has 879-Piece LEGO Ideas The Evolution of STEM Building Set (21355) on sale for $45.99. Shipping is free, otherwise select free store pickup where available.

Thanks to Community Member MauiCat for sharing this deal.
  • Note: Availability for pickup may vary by location.
About this Item:
  • Minifigures: 3 scientists (Marie Curie, Isaac Newton, George Washington Carver)
  • Display Features: Open-book base with mini builds (Newton's apple tree, Carver's plant bed, space shuttle, robotic arm)
  • Interactive Elements: Dial turns to float 3D carbon atom and rotate DNA strand; includes Morse code, NASA Voyager Probe with Golden Record
  • Gift Idea: For adults passionate about STEM, science, or history
  • LEGO Ideas Origin: Fan-designed, fan-voted, LEGO-produced collectible
  • Piece Count & Dimensions: 879 pieces; 10.5 in. (27 cm) H x 9 in. (23 cm) W x 7.5 in. (19 cm) D

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.6 out of 5 stars from customer reviews.
  • Offer valid for a limited time only / while supplies last.
  • Sign-up for Target Circle Card to save an additional 5%, receive free shipping on most items, and attain an extended return period.

Original Post

Written by MauiCat
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Target has 879-Piece LEGO Ideas The Evolution of STEM Building Set (21355) on sale for $45.99. Shipping is free, otherwise select free store pickup where available.

Thanks to Community Member MauiCat for sharing this deal.
  • Note: Availability for pickup may vary by location.
About this Item:
  • Minifigures: 3 scientists (Marie Curie, Isaac Newton, George Washington Carver)
  • Display Features: Open-book base with mini builds (Newton's apple tree, Carver's plant bed, space shuttle, robotic arm)
  • Interactive Elements: Dial turns to float 3D carbon atom and rotate DNA strand; includes Morse code, NASA Voyager Probe with Golden Record
  • Gift Idea: For adults passionate about STEM, science, or history
  • LEGO Ideas Origin: Fan-designed, fan-voted, LEGO-produced collectible
  • Piece Count & Dimensions: 879 pieces; 10.5 in. (27 cm) H x 9 in. (23 cm) W x 7.5 in. (19 cm) D

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.6 out of 5 stars from customer reviews.
  • Offer valid for a limited time only / while supplies last.
  • Sign-up for Target Circle Card to save an additional 5%, receive free shipping on most items, and attain an extended return period.

Original Post

Written by MauiCat

Community Voting

Deal Score
+60
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Price Intelligence

Model: The Evolution of STEM

Deal History 

Sale Price
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Sort: Lowest to Highest | Last Updated 11/21/2025, 08:40 PM
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Target$45.99

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Top Comments

ThomWeights
225 Posts
98 Reputation
That's a solid discount on Lego but still not enough for me to go 'sure, why not' and buy it.
BraveClover790
433 Posts
104 Reputation
Such weird set like is that a bee on top and a model T and Einstein and a skyscraper and…

8 Comments

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Oct 31, 2025 12:24 AM
225 Posts
Joined Aug 2011
ThomWeightsOct 31, 2025 12:24 AM
225 Posts
That's a solid discount on Lego but still not enough for me to go 'sure, why not' and buy it.
Oct 31, 2025 02:21 AM
433 Posts
Joined Nov 2019
BraveClover790Oct 31, 2025 02:21 AM
433 Posts
Such weird set like is that a bee on top and a model T and Einstein and a skyscraper and…
2
Oct 31, 2025 03:09 AM
30 Posts
Joined Aug 2016
RonaldJ7435Oct 31, 2025 03:09 AM
30 Posts
Been waiting for a good price on this set. Glad I waited. This price is way better than I had hoped for!
2
Oct 31, 2025 04:08 AM
1,237 Posts
Joined Mar 2023
BigBGOct 31, 2025 04:08 AM
1,237 Posts
I believe in science, which is why that set is ass. What were they thinking? It's a monstrosity tower.
1
1
Oct 31, 2025 06:22 AM
11 Posts
Joined Sep 2017
VanxsquadOct 31, 2025 06:22 AM
11 Posts
I hate the new direction of lego. "Lets inflate the piece count by including random tiny little bits so we can say you're getting the same price per piece!"
Oct 31, 2025 07:07 AM
938 Posts
Joined Apr 2009
thriftmeisterOct 31, 2025 07:07 AM
938 Posts
Quote from Vanxsquad :
I hate the new direction of lego. "Lets inflate the piece count by including random tiny little bits so we can say you're getting the same price per piece!"
Yeah, I'm kind of a Lego Maniac and my process for deciding whether or not to bite on a deal goes:

-Calculate price/piece
-Then, if it's a relatively complex set where you can't easily see most/all of the parts, I pull up the building instructions to see how many higher-value pieces (usually large and/or uncommon) are included
-Bonus points if I feel a lot of the pieces can be repurposed into an alternate build or MOC

This deal has a nice price per piece but just doesn't really check any of the other boxes for me, personally. Kinda cute and quirky set, though.
Pro
Oct 31, 2025 10:11 AM
3,020 Posts
Joined Nov 2005
BrainDoc
Pro
Oct 31, 2025 10:11 AM
3,020 Posts
Such a cool set! The mini figures are Marie Curie, Isaac Newton, and George Washington Carver.

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Oct 31, 2025 01:40 PM
3 Posts
Joined Dec 2018
gershbecOct 31, 2025 01:40 PM
3 Posts
I'd be all in if it weren't for the multiple reviews pointing out that they got the DNA structure incorrect. Seems like a big deal to mess that up in a STEM set.
EDIT: apparently it's fixable so I guess I'll pick it up. Lots of criticisms out there but I think it's kind of neat.

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