Lego is forever. Modern Lego sets include classic worlds like Lego City, franchise collaborations with beloved characters like Super Mario, and exciting new adventures in Lego Dreamzzz, where shark ships ply the skies.

This Black Friday, we're a little obsessed with Lego. And with so many great Black Friday deals on science and STEM-themed Lego sets — including the Botanicals range, nature-themed sets, animals, space and more — we wanted to share them with you.

Here are the best Black Friday Lego deals I've found so far on Lego Star Wars, Marvel and space sets from a range of trusted retailers.

With early Black Friday sales unfolding at Walmart and beyond, now is the time to start ticking gifts off the holiday shopping list. Any parent with a Lego-obsessed kid knows the sound of Legos scraping in the box. There are few better times throughout the year to add more Legos to the war chest.

Walmart's early Black Friday sale is now live for all shoppers! Save up to 70% on Lego, Gotham Steel, Henckels, Sunbeam and more.

The Lego Star Wars Pirate Snub Fighter set should be $34.99, but there's a 30% saving to be had on Amazon this Black Friday.

I have most of the LEGO Botanicals sitting on my desk, and it looks like now’s the time to expand my plastic garden. Amazon has most of the Botanical Collection on sale for Black Friday. The LEGO Orchid was the first Botanical set I built and the one that made me fall in love with this colorful collection.