旧市街

1. Origins, structure, and basic meaning

• Structure: 旧市街 (きゅうしがい) is the older historic district of a city. 旧市街には sets the area bearing features; 旧市街を歩く marks a route.
• Basic usage: Narrow stone alleys remain in the district, and a visitor walks through it early when few people are present.

2. Common pitfalls and similar expressions

• District retaining old streets and district traversed on foot
  • Existential description uses には; movement uses route-marking を. The term denotes a historic section within a city rather than an entire city that happens to be old.