Most Valuable Retail LEGO Sets

LEGO 375-2 Castle was a 767 piece Castle set with 14 minifigs released in 1978. This version was only released in European, the UK, Australia and Canada. It was also known as "Yellow Castle".

It was included in the LEGO catalogs from 1980 until 1982. The train is equipped with lights at the front of the engine and at the end of the tender. It is the only set to have red train wheels.

It includes a large three-masted pirate ship, nine pirates, a rowboat, and a shark.

It includes both minifigures of the Crusaders and the Black Knights.

This version of Command Center was sold throughout the world were as an identical set, 493 Space Command Center was only sold in the US.

The Pirates Black Seas Barracuda was re-released as 10040 in 2002. It was known as The Pirate Ship “Dark Shark”

1308 Fire Station was a 111 piece Town Pan System i Leg set released in 1957. It includes a Red HO Scale, Bedford Fire Engine. It was released again in 1958, as set 308 Fire Station and again in 1960.

When the new trains system was introduced in 1980, this was the smaller of the two 12v train starter sets and was the first of only three sets that came with the red 12v motor. This set comes either with the first (767) or second (4166) version of th

It includes a castle of the Black Knights, four horses and twelve minifigures.

It was also called "International Shuttle" and included a red double car monorail that was powered by a 9V engine.

This version of the set was only released in the US and is the same as set 375. The iconic set comes with 14 minifigures, including four knights on horses and ten guards/soldiers and was one of the first LEGO sets with minifigures.

It contains a garage and two 260 VW Beetles. While the colors of these were different they were typically blue and green. Included was a 1x8 white printed sign that had different printing based on the region and printed on it either GARAGE VW, SERVIZIO VW, VW GARAGE, VW SERVICE or just VW LEGO.

It contains a street scene with a construction site, a car repair shop, a popcorn seller, a truck and a car.

LEGO 113-2 Motorized Train Set was a 402 piece Trains set released in 1966. It was only sold in Europe. From the LEGO catalog - "A 402 piece set that builds an authentic European style train.

This set was sold in the United Kingdom, Ireland, and Australia from 1962 until 1967 and was also known as "European Town Plan".

It includes a castle with a princess, two knights on horses, four guards and a ghost minifigures.

It includes a helicopter like spacecraft, a robot and an M-Tron astronaut minifigure. The set was also called "Cosmicopter".

It was also called "Space Police Galactic Enforcer" and includes a Space Police starship, a rover, two Space Police I jail cells and two spacecraft, two Space Police I Officer and a Blacktron criminal minifigure.

It consists of a highly detailed Darth Maul bust, standing 17 inches tall.

It contains a large surface base built onto two crater baseplates, a small spacecraft, a rocket, hover vehicle and three black, blue, and yellow Classic Space astronauts minifigures. The set was also called "Space Station Alpha".