Prešov is Slovakia's third-largest city, but it feels more provincial and easier-going than that ranking suggests. It is the centre of the old Šariš region, north of Košice, with a long historic core, mixed Latin and Greek Catholic heritage, and a Rusyn cultural thread that gives the city its own flavour.
The best first impression is Hlavná ulica, the broad main street where churches, theatres, town palaces, and cafes line up in a loose procession. The Co-Cathedral of Saint Nicholas is the Gothic anchor, while the Alexander Dukhnovych Theater keeps Prešov's Rusyn identity visible in the centre.
Prešov also makes a practical base for small side trips. The salt-mining complex at Solivar is one of the most distinctive industrial heritage sites in eastern Slovakia, and the ruined Šariš Castle above Veľký Šariš is a fine half-day outing if you want views with your history.
Do not come expecting the polish of Bratislava or the theatre of Košice's main street. Prešov is quieter, more local, and better suited to travellers who enjoy a working regional city with enough architecture, hills, and cultural oddities to reward a night or two.