The Flintstones and Jetsons are hidden in the new Lego video game - here's how to find them

The "LEGO Dimensions" video game has been available since September, but fans are still discovering Easter eggs and secret locations to unpack.

Fans found two new hidden areas which allow players to visit the worlds of Hanna-Barbera cartoons "The Flintstones" and "The Jetsons."

However, you have to own a few additional expansion packs to the $100 game in order to find both of them.

Early November, Lego released a new "Doctor Who" expansion. Once you unlock the Doctor's time machine, the TARDIS, you're able to take the traveling police box across time, space, and various Lego dimensions including the Flintstones' Bedrock and the Jetsons' Orbit City.

Keep reading to see how to find the hidden areas and what they look like.