The Short Answer
Nagoya is not a sightseeing city, and pretending otherwise is why visitors leave disappointed. It is Japan's manufacturing capital — Toyota, aerospace, machine tools — and it was flattened in 1945 and rebuilt for cars and industry rather than for walking. If your measure is temples and old streets, Kyoto is thirty-five minutes away and will win every time.
But two arguments make Nagoya genuinely worth stopping in, and neither is about the city centre.
It is the best base in Japan for the mountains. Shirakawa-go, Takayama, the Kiso Valley post towns, Kamikochi in the Japanese Alps and the Tateyama Kurobe Alpine Route are all day trips from here. From Tokyo or Kyoto they are overnight expeditions. That single fact is the strongest case for the city.
Its museums are exceptional and specific. The Toyota Commemorative Museum traces a loom company becoming a car company with live machinery. The Tokugawa Art Museum holds one samurai family's possessions kept together since the Edo period. Ghibli Park is here. These are better than their equivalents in larger cities because they are not competing for your attention with a hundred temples.
A reasonable verdict: one to two nights, or use it as a base for three or four. Do not give it a week.

Shirakawa-go and Takayama Day Trip
The thatched valley from the observatory above, and Takayama old town on foot.
From $69
10 hours

