(CNN) — It’s the Italian city home to palaces so spectacular that they’re UNESCO World Heritage sites. A city that was once home to so much wealth that the local aristocracy lived in environments literally fit for a king, and the place where Rubens began his great artistic career.

Rome? Florence? The Grand Canal-facing palaces of Venice?

Nope: Genoa.

Seen by many as “just” a port city — one whose approach by water is often marred by ugly postwar urban development and the sprawling port itself, which stretches nearly 14 miles along the waterfront — the capital of Liguria is in fact one of Italy’s most spectacular cities.

It’s home to what’s said to be the most intact medieval city center in Europe, and beautiful art nouveau architecture in its “new” area (yes, this is a city where “new” is still old).

But what drew UNESCO’s attention in 2006 was the Palazzi dei Rolli, or Rolli Palaces — a system of aristocratic mansions so spectacular that they were used as proto-hotels for visiting dignitaries and even royalty.

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