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Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Solomon R. Guggenheim Museum

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21035 Solomon R. Guggenheim Museum

744 pieces in 143 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 232 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×12
  • Plate 1 x 3 Black Part 3623 Element 362326 ×12
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 6 x 10 Black Part 3033 Element 303326 ×4
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×4
  • Plate 1 x 12 Dark Bluish Gray Part 60479 Element 6133611 or 4666604 ×2
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×4
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×4
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×8
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×8
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×1
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 1 spare in the box ×19
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×4
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×9
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×3
  • Plate 2 x 10 Tan Part 3832 Element 4249019 or 4248731 ×2
  • Plate 2 x 14 Tan Part 91988 Element 6036487 ×1
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×8
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×4
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×3
  • Plate 2 x 8 Tan Part 3034 Element 4113988 or 303405 ×1
  • Plate 3 x 3 Cross Tan Part 15397 Element 6061575 ×1
  • Plate 4 x 6 Tan Part 3032 Element 4114001 ×1
  • Plate 1 x 1 Trans-Brown Part 3024 Element 6513960 or 6252039 1 spare in the box ×23
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×16
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×16
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×7
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×11
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×3
  • Plate 2 x 16 White Part 4282 Element 6609534 or 4119227 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×8
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×4
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×4
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×2
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×12
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×4
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×1

Tiles 227 pieces

  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×4
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 Also in Dark Bluish Gray ×8
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box Also in Trans-Brown ×2
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×4
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×1
  • Tile 1 x 8 with Groove Dark Bluish Gray Part 4162 Element 5210651 or 4211008 Also in Black ×3
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×6
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×8
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×4
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×8
  • Tile 1 x 8 with Groove Light Bluish Gray Part 4162 Element 4211481 ×1
  • Tile 2 x 2 Corner Light Bluish Gray Part 14719 Element 6065824 ×8
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×4
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×3
  • Tile 1 x 6 with Groove Olive Green Part 6636 Element 6016484 ×1
  • Tile 2 x 4 with Groove Olive Green Part 87079 Element 6016488 ×6
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 2 spares in the box ×103
  • Tile 1 x 8 with Groove Tan Part 4162 Element 4544139 or 4519964 ×1
  • Tile 2 x 4 with Groove Tan Part 87079 Element 6122047 or 4610209 ×3
  • Tile 1 x 1 with Groove Trans-Brown Part 3070b Element 6514259 or 6254253 1 spare in the box Also in Dark Bluish Gray ×15
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×7
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×3
  • Tile 1 x 3 White Part 63864 Element 6552134 or 6548270 ×7
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×3
  • Tile 1 x 8 with 'THE SOLOMON R GUGGENHEIM' Print White Part 4162pr0051 Element 6182355 ×1
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×4
  • Tile 2 x 3 White Part 26603 Element 6552162 or 6550161 ×3
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×2
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×3

Bricks 75 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×6
  • Brick 1 x 4 Black Part 3010 Element 301026 ×3
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick 1 x 2 x 2 with Inside Stud Holder Dark Bluish Gray Part 3245c Element 4210978 ×7
  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×13
  • Brick 1 x 3 Tan Part 3622 Element 4162465 or 4113920 ×6
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×2
  • Brick 1 x 6 Tan Part 3009 Element 4112982 or 300905 ×5
  • Brick 1 x 8 Tan Part 3008 Element 4159774 or 4124002 ×6
  • Brick 2 x 3 Tan Part 3002 Element 4159739 or 300205 ×1
  • Brick 2 x 4 Tan Part 3001 Element 4114319 or 300105 ×5
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×8
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×4
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×3
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×1
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1

Bricks Special 67 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×23
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Black Part 26604 Element 6187572 ×4
  • Brick Special 1 x 2 with 2 Studs on 1 Side Black Part 11211 Element 6138173 ×7
  • Brick Special 1 x 4 with 4 Studs on One Side Black Part 30414 Element 4162443 ×12
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×1
  • Brick Special 1 x 1 with Headlight Tan Part 4070 Element 4280137 or 4118793 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Tan Part 11211 Element 6024495 ×7
  • Brick Special 1 x 4 with 4 Studs on One Side Tan Part 30414 Element 4201062 or 4177990 ×4
  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×7

Plates Special 36 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×4
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Black Part 92593 Element 4599499 ×7
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 ×4
  • Plate Special 2 x 6 x 2/3 with 4 Studs on Side, 1 Support Wall on Bottom Light Bluish Gray Part 87609 Element 6102575 ×1
  • Plate Special Round 8 x 8 with 2 x 2 Center Studs with Groove Light Bluish Gray Part 6177b Element 4625582 or 4211661 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Tan Part 60897 Element 6352222 or 6029889 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Tan Part 15573 Element 6092587 ×5
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×7
  • Plate Special 4 x 4, Studs on One Edge Plain] White Part 6179 Element 6550149 or 617901 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Yellow Part 2540 Element 4140587 or 254024 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Yellow Part 15573 Element 6092583 ×4

Bricks Curved 35 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×3
  • Brick Curved 2 x 2 x 2/3 with 'MUSEUM' Print White Part 15068pr0014 Element 6182352 ×1
  • Brick Curved 2 x 4 x 1 1/3 White Part 6081 Element 608151 or 608101 ×2
  • Brick Curved 3 x 1 No Studs White Part 50950 Element 6548268 or 4249112 ×11
  • Brick Curved 3 x 2 No Studs White Part 24309 Element 6552158 or 6132212 ×1
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] White Part 11153 Element 6578744 or 6564905 ×10
  • Brick Curved 4 x 2 No Studs White Part 93606 Element 6552144 or 6031947 ×6

Plates Round Curved and Dishes 16 pieces

  • Plate Round 6 x 6 with Hole Black Part 11213 Element 6187587 ×4
  • Dish 3 x 3 Inverted [Radar] Light Bluish Gray Part 43898 Element 6070564 or 4568360 ×1
  • Dish 6 x 6 Inverted (Radar) with Solid Studs Light Bluish Gray Part 44375b Element 4211796 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×1
  • Dish 10 x 10 Inverted (Radar) with Solid Studs Sand Green Part 50990b Element 6187588 ×1
  • Plate Round Corner 3 x 3 Tan Part 30357 Element 4543858 or 4124071 ×1
  • Plate Round 6 x 6 with Hole White Part 11213 Element 6601923 or 6109817 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×4

Bricks Sloped 15 pieces

  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Light Bluish Gray Part 15571 Element 6075075 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×3
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×3
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×1

Panels 14 pieces

  • Panel 1 x 1 x 1 Corner White Part 6231 Element 6619293 or 623101 ×5
  • Panel 1 x 2 x 1 [Rounded Corners] White Part 4865b Element 6552161 or 6146215 ×2
  • Panel 1 x 3 x 1 White Part 23950 Element 6552160 or 6139694 ×1
  • Panel 1 x 4 x 1 with Rounded Corners [Thin Wall] White Part 15207 Element 6552215 or 6514504 ×4
  • Panel 2 x 2 x 1 Corner White Part 91501 Element 6181753 or 4610290 ×2

Tiles Round and Curved 13 pieces

  • Tile Round 1 x 1 Quarter Light Bluish Gray Part 25269 Element 6176433 1 spare in the box ×6
  • Tile Round 1 x 1 Olive Green Part 98138 Element 6284595 or 6047015 1 spare in the box ×1
  • Tile Round 1 x 1 Trans-Brown Part 98138 Element 6514195 or 6274744 1 spare in the box ×3
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×3

Tiles Special 8 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×4
  • Tile Special 2 x 2 Inverted White Part 11203 Element 6564913 or 6013866 ×4

Plates Wedged 3 pieces

  • Wedge Plate 4 x 4 Cut Corner Light Bluish Gray Part 30503 Element 4160560 ×1
  • Wedge Plate 2 x 4 Sand Green Part 51739 Element 6187591 ×2

Bricks Round and Cones 1 piece

  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs White Part 48092 Element 6550183 or 6337627 ×1

Bricks Wedged 1 piece

  • Brick Wedged 3 x 3 Cut Corner Black Part 30505 Element 4159550 ×1

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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