Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- BATMAN™
- BIONICLE
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- Train
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Airport LEGOLAND Medium Builds Official Sets

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder 5740 Views

Year Released: 1977
Bricklink
Instructions

Back A

Back A

← 6208 – Back B
371-3 – Back A →

You May Also Like

2333: Animal

May 16, 2023May 16, 2023 Master Builder

6462 – Back A

July 10, 2026July 10, 2026 Master Builder

6074: Black Falcon’s Fortress

October 14, 2021July 29, 2023 Master Builder

6808: Galaxy Trekkor

January 21, 2021January 21, 2021 Master Builder

6923 – Back C

October 1, 2019October 25, 2021 Master Builder

6016: Knight’s Arsenal

October 12, 2021October 12, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Official Sets Space Port Town Very Small Builds

3067 (Kabaya: Town Space Port 2): Test Shuttle

February 28, 2025February 28, 2025 Master Builder

Year Released: 1999BricklinkInstructions *Alternate Builds are found on Kabaya: Town Space Port

Classic Space Classic Space Sets Official Sets Small Builds Space

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6679: Dark Shark

December 28, 2021December 28, 2021 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6012: Siege Cart

September 24, 2024September 24, 2024 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6892: Modular Space Transport

November 17, 2021July 31, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Very Small Builds

4750: Draco’s Encounter with Buckbeak

May 16, 2023May 16, 2023 Master Builder

Castle Castle Sets Duplicate Set Number Large Builds Official Sets Wolfpack

6075-1: Wolfpack Tower

October 11, 2021March 11, 2024 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

6623: Police Car

October 13, 2021October 13, 2021 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4582: Red Bullet

October 23, 2021February 21, 2025 Master Builder

9V Large Builds Official Sets Town Train Train Sets

4552: Cargo Crane

July 22, 2026July 22, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6870: Space Probe Launcher

January 12, 2021January 12, 2021 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5540: Formula I Racer

February 10, 2026March 4, 2026 Master Builder

Blacktron II Blacktron II Sets Official Sets Very Small Builds

6832: Super Nova II

October 5, 2019October 5, 2019 Master Builder

Box Story Fabuland Fabuland Sets Official Sets Small Builds

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 2025 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6734: Beach Cruiser

April 7, 2026April 7, 2026 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
BATMAN
Bionicle
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Train
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.