Established in 1867 by English businessman Sir Thomas Hanbury, the 18-hectare Villa Hanbury estate is planted with 5800 botanical species from five continents, including cacti, palm groves and citrus orchards. Today it's a protected area, under the care of the University of Genoa.
Take bus 1a from Via Cavour in Ventimiglia; the bus continues on to the Ponte San Lodovico frontier post, from where you can walk down to the Balzi Rossi caves and beach on the French border.