The circular plan
A circle within a square from 1545, still as drawn.
Semolo75 — Public domain · CC BY-SA 2.5 · Chris Light — CC BY-SA 4.0 · Chris Light — CC BY-SA 4.0
**The world's oldest university botanical garden still on its original site — since 1545** — and a World Heritage site. The **University of Padua** created it in **1545** to grow **medicinal plants** and teach medical students to tell them apart — ⚠ **and confusing a healing plant with a poisonous one killed people**, **so the garden was a safety instrument**. ✅ **Its original plan survives**: **a circle within a square** — symbolising the world — **divided into four quarters by two crossing paths**. ⚠ **It holds "Goethe's palm"** — a fan palm planted in **1585**, ⚠ **which the poet Goethe saw in 1786** and wrote about in his reflections on plant metamorphosis, **and which is still alive in its glasshouse**. ✅ **And a modern "Garden of Biodiversity"** with five climates under one roof.
A circle within a square from 1545, still as drawn.
A fan palm of 1585 in its own glasshouse.
A modern glasshouse of five climate zones.
Via Orto Botanico 15, 35123 Padua, Italy
Basilica of Saint Anthony**A church of eight domes and two minaret-like towers that looks more like a mos3 minutes walk4.9
Prato della Valle**Italy's largest square and one of Europe's biggest — an oval island in a moat 5 minutes walk4.6
Palazzo della Ragione**A medieval hall without a single column in the middle, roofed by an inverted t12 minutes walk4.7
Caffè Pedrocchi**A café built without doors that stayed open day and night for a century — and 12 minutes walk4.5
The Scrovegni Chapel**One room painted entire by Giotto in 1305, and taken as the moment modern Euro17 minutes walk4.9**Because they turned plant knowledge from the copying of texts into direct observation — the foundation of modern biology.** ✅ **The problem before**: European medicine relied on **ancient texts** — **Dioscorides** above all — **describing plants in words and in drawings copied from copies** across centuries. ⚠ **The practical result was disastrous**: **descriptions were vague**, **drawings distorted by repeated copying**, **names varied between regions**, ⚠ **so an apothecary erred and a patient died** — **and many medicinal plants are poisonous at a slightly higher dose**. ✅ **What the garden did**: **it gathered living plants in one place, classified and named** — **so a student saw, touched and smelled** rather than reading a description. **And two similar plants could be compared side by side.** ✅ **The wider effect**: **when the plants of the whole world are grown in one place** — and Padua received plants from the East and the Americas through Venetian trade — **systematic comparison becomes possible**; **from which botanical classification arose**, and then the idea that living things fall into groups. ⚠ **Padua introduced plants to Europe**: it is credited with an early part in **the sunflower, jasmine and the potato**.