Transylvania is the Romania of postcard legend, all misty hills, medieval towns, and castle lore. Craiova, in the south, is a working regional capital that few foreign travelers ever see. Comparing them shows two very different sides of the same country.
Transylvania is built around castles — Bran Castle, Peleș Castle, and Corvin Castle anchor whole day trips, and the Sighișoara Medieval Citadel is a still-inhabited walled town. Craiova has no castles; its historic core is the compact Old Town (Centru Vechi) around Piața Mihai Viteazul, a working city center rather than a fairy-tale set.
Brașov's Black Church and Council Square (Piața Sfatului), along with Sibiu's Large Square (Piața Mare), give Transylvania grand Gothic and Baroque set-pieces. Craiova's religious landmarks are quieter and more local — St. Demetrius Cathedral, St. Ilie Church, and Madona Dudu Church — worth a look but not a reason to plan a trip around.
Sibiu's ASTRA National Museum Complex is one of Europe's largest open-air museums, worth a half-day alone. Craiova counters with the Craiova Art Museum and the Museum of Oltenia, plus something Transylvania's list doesn't offer: the sprawling, genuinely pleasant Nicolae Romanescu Park.
Craiova's best reason to linger is what surrounds it: the UNESCO-listed Horezu Monastery and the cave complex at Polovragi Monastery and Cave are within easy day-trip range. Transylvania doesn't need day trips in the same way — Alba Iulia Fortress and the Sibiu Historic Center are themselves full destinations spread across the region rather than side trips from one base.
Choose Transylvania for castle-studded scenery, walkable medieval towns, and the region's open-air museums. Choose Craiova for an authentic, low-tourist Romanian city with nearby UNESCO monasteries. Most visitors base themselves in Transylvania and treat Craiova as a detour, not the reverse.