The ride up Mt Mtatsminda on the recently reconstructed Funicular is spectacular, as are the views from the top – and the Funicular Complex restaurant building has a couple of great places to eat or drink. It's also usually several degrees cooler up here than in the city below, which can be very welcome in the heat of summer.
To ride the funicular you need a 2 GEL plastic card (sold at the ticket office) on which you then add credit for your rides (and any rides in the Mtatsminda amusement park).