Nostalgic IP has overtaken Lego sets in recent years. Here are the best sets that look backwards. Lego has a nostalgia problem. I do, too. Like Hollywood and its eternal cycle of remakes, the Danish company has found a bottomless treasure pot full of GenX and Gen Z people willing to burn their credit cards to turn their golden memories into bricks. By my count, 2025 alone brought a record-setting 16 sets related to old Lego properties and external IPs, shattering 2023’s previous peak of 9 sets.