• Terraced hillside layout with paths linking the levels, so expect some climbing with a stroller
• Free Sunday mornings until 1pm, a good time to try it before paying for a full visit
• Combo ticket with the museum next door, the National Museum of Natural History and Science, at €8 per adult

Jardim Botânico de Lisboa is the University of Lisbon's 19th-century science garden, laid out in terraces on the Monte Olivete hillside. Paths wind past ponds and cascades, palms from every continent and a collection of cycads, ancient plants called living fossils.

A newer Garden of the Senses has replaced the old butterfly house. The garden belongs to the National Museum of Natural History and Science next door.