Ancient Trees in Modena
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The Oak of the Giardino Ducale
Pedunculate Oak (Quercus robur). roughly 175 years, planted 1840-1854. Free. Giardino Ducale Estense is Modena's main public garden, open daily (roughly 6:30-23:30 in summer, 7:00-20:30 in winter), no ticket or appointment.

The Plane Tree of the Autostazione
London Plane (Platanus x acerifolia). not documented; the oldest plane tree in the city. Free. Stands in a flowerbed roughly at the centre of the public square in front of Modena's Autostazione (coach station) on Via Benedetto Bacchini, open ground, no gate or appointment.

The Holm Oak of the Cortile del Leccio
Holm Oak (Quercus ilex). about a century old (disputed, see notes). Free. Reached via a corridor from Via Francesco Selmi into the courtyard of the former San Paolo monastery complex, now home to the university law faculty library, a EU documentation centre, and a cafe/coworking space; the courtyard itself is open to the public without an appointment.

The Bald Cypresses of Villa Ombrosa
Bald Cypress (Taxodium distichum). not documented. Free. Parco Villa Ombrosa is a public municipal park (now also home to Modena's Casa delle Donne), with entrances from Strada Vaciglio Nord, Via Vignolese, Via San Remo and Via Levanto. No gate or appointment needed.

The Bald Cypress of Via del Pozzo
Bald Cypress (Taxodium distichum). not documented. Free. Stands along Via del Pozzo near the Policlinico hospital, on what both sources describe as public green space rather than hospital grounds; a street/public-area tree, no gate or appointment.