Past activities
Nieuwe activiteiten
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.

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.

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...

How deep does a meteorite fall into the ground?
Discover how a meteorite falls to our Earth. Werkgroep Meteoren shows it with their test stand in which the impact is simulated.

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.

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...

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...

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...

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.

Tulpenmanie @ Hortus in Leiden anno 2022
Discover the hidden life in the soil!