
Cutting and pasting human DNA?
A lecture on genetic modification of embryos and the ethical questions it raises.
Multi-day exhibitions and festivals still on today.

Astronaut AndrΓ© Kuipers shares his experiences from space missions and discusses the history of moon landings at the Rijksmuseum Boerhaave.

Learn to create a kokedama, a moss ball with a plant, using this traditional Japanese technique in a hands-on workshop.

Learn botanical art techniques and work with flowers as your subject in this creative workshop.

Guided tour of the Hortus botanicus Leiden greenhouses exploring remarkable houseplants and how to care for them.

Guided tour through the Hortus botanicus Leiden greenhouses, discovering houseplants in their natural environment.

Weekly guided tours of Pieterskerk in Leiden exploring centuries of history, hidden stories, and the notable figures connected to this historic church.

Guided viewing of Chris Lebeau's murals in Leiden's Old Catholic Church, early 20th-century artworks that have endured for almost a hundred years.

A weekly guided tour of the garden on Saturday mornings, running from June through September.

Join a guided walk through Leiden's botanical garden on Saturday mornings this summer, no advance booking needed.

Dhyan Tjebbe Westendorp explores how ancient civilizations observed the heavens and interpreted what they saw in the stars.

A philosophical lecture examining the tension between beauty and goodness. Does aesthetic enjoyment alone satisfy, or is there something more?

Flexible sewing lessons on a punch card at VNTG Atelier in Leiden. For those with basic skills, available Monday, Tuesday and Wednesday mornings.