What is an obscure tourist location you think is underrated?

[Battista Minola 1616]

Given that there recently was a thread about overrated tourist locations, I think it is fair to ask the opposite too. What do you think is an underrated place to visit?

[Battista Minola 1616]

To answer my own thread:

Palmanova is a nice little town in Friuli quite off the beaten track with a peculiar architectural structure if there ever was one - it has the shape of a nine-pointed star, is surrounded by a nine-pointed wall and moat, and has a hexagonal square in the middle.

Not far from there, the small city of Gorizia at the border with Slovenia is great. Arguably all the area where Italy, Slovenia and Croatia meet is underrated (although not really obscure).

I personally think everything in Pisa not named Leaning Tower is underrated, but nothing beats the church of San Michele degli Scalzi, a prime example of Romanesque architecture with a bell tower (and the church itself!) leaning even more than the most famous one, which probably receives little attention because of its peripheral position.

The historic centre of Mannheim, also known as Quadratestadt, has a grid pattern where very unusually (for Europe) the streets have no name - instead blocks have. Quite interesting city in general. I recognize this will sound terribly boring to anyone who has been in Japan however.

I would also mention Orbetello (yes, we have another town in the middle of a lagoon!), Cesenatico (if you just ignore the resort town aspect and that brutish random skyscraper and focus on the historic centre, it's really pleasant), and although they are probably not obscure, Catania, the Camargue, Colmar, and Heidelberg.