Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- 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 4850 Views

Year Released: 1977
Bricklink
Instructions

Back A

Back A

← 6208 – Back B
371-3 – Back A →

You May Also Like

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

6370 – Back E

February 17, 2023May 19, 2023 Master Builder

924 – Bottom A

September 11, 2023September 11, 2023 Master Builder

6066 – Back A

September 24, 2023October 6, 2023 Master Builder

4555: Cargo Station

January 2, 2024January 2, 2024 Master Builder

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Aquazone Aquazone Sets Large Builds Official Sets Stingrays

6198: Stingray Stormer

October 29, 2019April 4, 2020 Master Builder

Year Released: 1998Bricklink

Medium Builds Official Sets Robo Force Robo Force Alternate Builds Robo Force Sets Space

2151: Robo Raider

January 14, 2021September 3, 2025 Master Builder

ABCs Bjarne Tveskov Blacktron Blacktron Sets Official Sets Small Builds Space

6876: Alienator

November 16, 2019October 16, 2024 Master Builder

Episode II Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets

4500: Rebel Snowspeeder

April 9, 2020April 9, 2020 Master Builder

Box Plus Extra Large Builds FreeStyle FreeStyle Official Sets Official Sets Poster Storage Container

2146: FreeStyle with Storage Case

December 15, 2025December 15, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6699: Cycle Fix-It Shop

October 28, 2025October 28, 2025 Master Builder

Classic Town Large Builds Official Sets Town Town Sets Traffic

1966: Car Repair Shop

May 16, 2025May 16, 2025 Master Builder

Classic Town Hospital Official Sets Small Builds Town Town Sets

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Very Small Builds

6810: Laser Ranger

September 25, 2019July 29, 2023 Master Builder

Indians Jørn Thomsen Medium Builds Official Sets Western Western Sets

6746: Chief’s Tepee

February 27, 2023July 29, 2023 Master Builder

Basic Large Builds Official Sets Universal Building Set

720: Basic Building Set

February 8, 2024February 9, 2024 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

3056: Go-Kart

July 26, 2020July 26, 2020 Master Builder

Official Sets Racers Radio Control Small Builds

8675: Outdoor Challenger

July 15, 2024July 15, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6931: FX-Star Patroller

January 12, 2021March 20, 2025 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
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
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.