On September 1, 2020, the LEGO® Group released Diagon Alley (75978). With 5,544 bricks, the set leapt onto the top 10 biggest sets of 2020 list. The re-shuffling it imposed bumped the Creator Expert Roller Coaster out of its 10th place spot. So where did Diagon Alley fall on the list? What rearrangements did it cause? Read on to find out.
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10. Big Ben (10253)

- Theme: Creator Expert
- Brick Count: 4,162
- Price: $299.99 CAD
- Cost/Brick: $0.07
- Minifigures: 0
- Released: July 2, 2016
- Availability: this set retired in 2019
09. Tower Bridge (10214)

- Theme: Creator Expert
- Brick Count: 4,295
- Price: $299.99 CAD
- Minifigures: 0
- Cost/Brick: $0.07
- Brick-to-Fig Ratio: N/A
- Released: October 3, 2010
- Availability: this set retired in 2019
08. Ghostbusters Firehouse Headquarters (75827)

- Theme: Ghostbusters
- Brick Count: 4,634
- Price: $399.99 CAD
- Minifigures: 9 + Slimer
- Cost/Brick: $0.09
- Brick-to-Fig Ratio: 463:1
- Released: January 2, 2016
- Availability: this set retired in 2019
07. Imperial Star Destroyer (75252)

- Theme: Star Wars
- Brick Count: 4,784
- Price: $849.99 CAD
- Minifigures: 2
- Cost/Brick: $0.18
- Brick-to-Fig Ratio: 2,392:1
- Released: October 1, 2019 (September 18 for VIPs)
- Availability: currently in stores, buy it on:
- Amazon.ca
- Amazon.com
- LEGO.com (Canada)
- LEGO.com (USA)
- Walmart.ca
06. Ninjago City (70620)

- Theme: The Ninjago Movie
- Brick Count: 4,867
- Price: $349.99 CDN
- Minifigures: 16
- Cost/Brick: $0.07
- Brick-to-Fig Ratio: 304:1
- Released: August 16, 2017
- Availability: this set retired in 2019
05. Millennium Falcon (10179)

- Theme: Star Wars
- Brick Count: 5,197
- Price: $499.99 US
- Minifigures: 5
- Cost/Brick: $0.10
- Brick-to-Fig Ratio: 1,039:1
- Released: October 24, 2007
- Availability: this set retired in 2010
04. Diagon Alley (75978)

- Theme: Harry Potter
- Brick Count: 5,544
- Price: $499.99 CAD
- Minifigures: 17
- Cost/Brick: $0.09
- Brick-to-Fig Ratio: 326:1
- Released: September 1, 2020
- Availability: currently in stores, buy it on:
- LEGO.com (Canada)
03. Taj Mahal (10256)

- Theme: Creator Expert
- Brick Count: 5,923
- Price: $449.99 CAD
- Minifigures: 0
- Cost/Brick: $0.08
- Brick-to-Fig Ratio: N/A
- Released: September 24, 2010 (as set 10189)
- Re-released: December 2, 2017
- Availability: The original set retired in 2011, but the re-release is currently in stores. Buy it on:
- Amazon.ca
- Amazon.com
- LEGO.com (Canada)
- LEGO.com (USA)
- Walmart.ca
02. Hogwarts Castle (71043)

- Theme: Harry Potter
- Brick Count: 6,020
- Price: $499.99 CAD
- Minifigures: 4
- Cost/Brick: $0.08
- Brick-to-Fig Ratio: 1,505:1
- Released: September 1, 2018 (August 15 for VIPs)
- Availability: currently in stores, buy it on:
- Amazon.ca
- Amazon.com
- LEGO.com (Canada)
- LEGO.com (USA)
- Walmart.ca
01. Millennium Falcon (75192)

- Theme: Star Wars
- Brick Count: 7,541
- Price: $899.99 CAD
- Minifigures: 7 + 1 droid
- Cost/Brick: $0.12
- Brick-to-Fig Ratio: 943:1
- Released: September 14, 2017
- Availability: currently in stores, buy it on:
- Amazon.ca
- Amazon.com
- LEGO.com (Canada)
- LEGO.com (USA)
- Walmart.ca
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