The bicycle turned 200 years old on June 12, 2017. Of course, it hasn't always looked like it does today. This video shows the development over the last two centuries and introduces the inventors who were behind it.

Jo is so obsessed with his train that he forgets a promise he made to Naya.

The search for buried treasure begins!

Naya gives Lu and Jo cookies to help them get well, but it seems they might be faking.

Shooting stars may be good luck, but so is having good friends.

Jo has opened up a store, but needs a bit of help deciding where things go.

Naya, Jo, and Lu learn the hard way that sometimes games can go a bit too far.

Jo, Naya, and Lu are looking for the sea but find themselves stranded! Luckily, water seems to be nearby...

It's hot outside and Jo, Naya, and little Lu really want ice cream. They've found the refrigerator, but where is the ice cream?

Will Jo be able to complete the final challenge? Will he figure out that Naya is playing a trick on him? Here is the conclusion of this episode of JoNaLu.

The song "Eisbär" from the Swiss band Grauzone is a Neue Deutsche Welle ("German new wave") classic. An abridged version here is accompanied by brilliant animation.

Naya has to be creative in finding ways to make Jo become her ideal prince!

With Jo asleep, Naya engages her plan to make him clean the castle. Caruso helps her by singing along!

The mail system developed by the little tiger and the little bear becomes a huge success in the forest, but these two have even more ideas to try out!

While Naya is enjoying her riches as a princess, Jo simply refuses to clean up, and lays down to sleep. How can Naya get him to be a more suitable prince?