Building blocks are part of so many great childhood memories for us. Whether they were LEGOs or Lincoln Logs or other colorful blocks, these sets have helped generations of kids fine-tune their motor skills and spark their imaginations. Here are four great building block sets we recommend.

PicassoTiles 100-Piece Set

This PicassoTiles set is designed to give kids a sense of color and geometric shapes using three-dimensional magnetic building blocks.Amazon

PicassoTiles makes its block sets to be STEM education friendly (science, technology, engineering and math). Designed for ages 3 and up, this 100-piece set can be enjoyed by the whole family.

Lincoln Logs 100th Anniversary Tin

Celebrate a century of Lincoln Logs with this 111-piece set, housed in a beautiful commemorative tin.Amazon

Lincoln Logs were invented around 1916 by John Lloyd Wright, the son of famed architect Frank Lloyd Wright. Inducted into the National Toy Hall of Fame in 1999, these logs are made of high quality maple wood and every piece has indentations so they can connect to each other. This anniversary collection includes three construction ideas - a tower, two small houses and a large cabin.

LEGO Harry Potter Hogwarts Castle

This set has 6,020 pieces—though we’re not sure if that includes the 27 microfigures, five dementors and Hungarian Horntail figure.Amazon

You don't have to visit Universal Studios Orlando to get a close look at Hogwarts School of Witchcraft and Wizardry—it's available in Lego form … albeit in 6,000-plus pieces. This set includes many of the iconic locations from the Harry Potter books including the towers, classrooms, Hagrid's hut and even the Whomping Willow.

Mega Bloks First Builders Big Building Bag

For ages 1 to 5, this set includes 80 colorful building blocks that little ones can turn into anything their imagination can dream of.Amazon

Mega Bloks created this set for little hands. Each big block fits to the others, and when playtime is over, just gather the toys into its handy storage bag.