This all-day event aims to popularize contemporary environmental topics and complements the Historia Naturalis exhibition, which showcases botanical and zoological works from the 15th to the 18th centuries held in the collections of the National Library of the CR.

Since the very beginning of its development, human has been inextricably linked to nature, even if we often fail to acknowledge it. The survival of our species depended on obtaining food, clothing, and medicines; consequently, vital information about various natural phenomena, animals, and plants was passed down from generation to generation—a practice that continues to this day.

Visitors can learn about the work of participating organizations dedicated to nature conservation, sustainability, and related issues through information and educational booths.

The event also features a large plant swap, offering growers a chance to enrich their home or office plant collections. A self-service station will be available on-site, allowing participants to drop off, browse, exchange, and take home plants throughout the day.

The accompanying program will also feature two virtual exhibitions Between Science and Art and Questions and Science exploring, among other topics, the changing nature of how we study the natural world and the associated evolution of imaging techniques. These will be accessible both online and at the Klementinum Gallery. Visitors will be able to engage in interactive educational activities that allow them to step into the shoes of scientists and researchers from the past.