Past activities
Nieuwe activiteiten
Playing with mathematics
Maths is really everywhere. Make a whirlpool and build your own bridge. Discover what sound looks like and play with perspective like an art...

Planktonium
Museum De Lakenhal shows planktonium by Jan van Ijken: a magical art film about the life of plankton.

The Leiden Maths Walk
For lovers of maths, there's a walk they can go on all by themselves: The Leiden Maths Walk with challenging mathematical questions.

Smart bacteria vs. new antibiotics
Do you know the risks of antibiotics? A game has been developed at Leiden University to introduce primary school children to antibiotics.

Month of Tutankhamun
100 years since the world-famous pharaoh: a month full of activities.

Seeing Stars Citizen Science
During the night of Seeing Stars Leiden, Citizen Science will try to answer many burning questions!

More-than-Planet
Starting on the 2nd of July, you can view a new exhibition at the Leiden Observatory: More-than-Planet. How do we imagine our planet?

Playing with mathematics
Maths is really everywhere. Make a whirlpool and build your own bridge. Discover what sound looks like and play with perspective like an art...

Planktonium
Museum De Lakenhal shows planktonium by Jan van Ijken: a magical art film about the life of plankton.

The Leiden Maths Walk
For lovers of maths, there's a walk they can go on all by themselves: The Leiden Maths Walk with challenging mathematical questions.

To Breathe: Leiden Kimsooja
On the Oude Vest, the Lucas van Leyden Fund is realizing the public artwork To Breathe: Leiden by Kimsooja, winner of the Lucas Art Award.

Route of Discoveries
There have been a lot of amazing and important discoveries done in Leiden. Follow the Route of Discoveries: see new places in the city or fi...

Diabetes: the coming 100 years
It is now 100 years since insulin was discovered as a treatment for diabetes. Since then, diabetes care has come a long way. But what do the...

Month of Tutankhamun
100 years since the world-famous pharaoh: a month full of activities.

Seeing Stars Citizen Science
During the night of Seeing Stars Leiden, Citizen Science will try to answer many burning questions!

More-than-Planet
Starting on the 2nd of July, you can view a new exhibition at the Leiden Observatory: More-than-Planet. How do we imagine our planet?