
As time progresses, the price of nearly everything increases, and toys are no different. The modest, affordable Lego sets from our youth have been succeeded by expansive collections, both in the number of pieces and their cost.
These purchases often exceed $100, but which set holds the title of the most expensive Lego set? For this analysis, we’ll focus on the suggested retail prices, as the secondary toy market can fluctuate significantly, sometimes surpassing or falling below retail values.
Numerous high-priced Lego sets are inspired by licensed franchises like Star Wars, Marvel, and Harry Potter, while others replicate iconic real-world landmarks and architectural wonders.
Lego Star Wars Ultimate Collector Series Millennium Falcon: $849.99

Throughout the years, numerous Lego renditions of the Millennium Falcon have been created, widely regarded as the most legendary spacecraft design among Star Wars enthusiasts (with the Star Destroyer and Death Star not far behind).
This newest high-end edition debuted in 2017, showcasing the updated design of the ship from the sequel trilogy. It includes more than 7,500 Lego bricks and pieces, alongside mini-figures of Han Solo, Princess Leia, C-3PO, Rey, and Finn.
Honorable Mention: Ultimate Collector's Millennium Falcon: $499.99
This earlier version of the Millennium Falcon was launched in 2007, capturing the original trilogy's design to appeal to long-time Star Wars fans. It includes 5,197 pieces and comes with five minifigures.
Initially priced at $499.99, this Lego set has been out of production for years. According to Brick Economy, acquiring a sealed version on platforms like eBay could now set you back more than $2,000.
Lego Star Wars Ultimate Collector Series AT-AT: $849.99
This mobile Sith tank was introduced in 2021 as part of the same Lego Star Wars collection. It currently shares the title of the priciest Lego set available.
This Lego set is still on the market, but Brick Economy suggests it may soon be discontinued. The set includes 6,785 pieces, a Luke Skywalker figure, multiple snow troopers, and two speeder bikes to complement the AT-AT model.
Lego Star Wars Ultimate Collector Series Imperial Star Destroyer: $849.99
Similar to the Millennium Falcon, the Star Destroyer has seen numerous Lego iterations. This 2019 version is modeled after Darth Vader's flagship, The Devastator. The set boasts 4,784 pieces, complete with operational turrets and several crew member minifigures.
Originally priced at $699.99, this set has since been retired and now commands a price exceeding $1,000 in the secondary market.
Lego Technic Liebherr Crawler Crane LR13000: $699.99
This 2023 scale replica of an actual construction vehicle might appear less exciting than Star Wars spacecraft, but its $699.99 price tag is anything but ordinary. While the 2,883-piece count contributes to the cost, the model's extensive functionality is a significant factor.
The Liebherr crawler crane's caterpillar tracks, crane arm, and winch are all motorized and can be operated remotely via a dedicated mobile app. This set is also one of Lego's largest, standing approximately 1 meter (over 3 feet) tall when fully assembled.
Lego RMS Titanic: $679.99
Launched in 2021, this Lego set offers a detailed 1:200 scale reproduction of the ill-fated luxury liner that sank during its first voyage from London to New York. With 9,090 pieces and authentic rope rigging (iceberg excluded), it stands as one of Lego's most expensive sets.
Lego Star Wars Ultimate Collector Series Republic Attack Cruiser: $649.99
This battleship debuted in 2023 to celebrate the 20th anniversary of the Star Wars Clone Wars series, making it a must-have for dedicated fans. It shares a design resemblance with the Star Destroyer but boasts a more streamlined silhouette and striking red highlights.
Lego Eiffel Tower: $629.99
This 2022 Lego creation aims to capture the grandeur of Paris with a 5-foot (1.5-meter) scale model of the iconic Eiffel Tower, complete with intricate interior details like platforms, elevators, and lifelike greenery.
As the tallest Lego set ever produced, it also ranks among the most time-consuming to build, containing over 10,000 pieces. Its price tag is comparable to the cost of an actual trip to Paris.
Lego Star Wars Ultimate Collector Series Razor Crest: $599.99
Another Star Wars vessel on this list, The Razor Crest, launched in 2022, is prominently featured in the newer series, "The Mandalorian."
This spacecraft boasts a meticulously designed interior with detachable panels, allowing for a clear view inside. The set includes 6,187 pieces and four Lego minifigures.
Lego Roman Colosseum: $549.99
Similar to the Eiffel Tower set, this 2020 creation is a scaled-down model of a renowned European landmark — the iconic Colosseum in Rome, an ancient amphitheater constructed over two millennia ago. The Lego version mirrors the landmark's current state, showcasing visible wear and damage on its walls.
This set contains an impressive 9,036 pieces and was originally priced at $549.99, though it is now retired.
Lego Iron Man Hulkbuster: $549.99
Launched in 2022, the legendary Hulkbuster is renowned as the largest Iron Man suit in Marvel comics. This mech suit also appeared in the 2012 film "Avengers: Age of Ultron," and the Lego set closely mirrors its cinematic design.
True to its scale, the set includes 4,049 pieces and comes with a Tony Stark minifigure that fits into the Hulkbuster's operational cockpit.
Considering the secondary auction market, one of the most expensive sets is the 1979 Lego Space Command Center, which features a planetary rover, research module, and astronaut figures for your collection. Despite its simplicity and original $25 price tag, this set can now reach up to $10,000 if it comes with pristine original packaging.