Hi all,
I'm a big fan of "underground" or as Rick Steve's would say, backdoor experiences. One website I use that provides a lot of good material of this type is Atlas Obscura. However, sometimes sights are listed there because they are odd (or bonus material), not necessarily because they are hidden gems.
Atlas Obscura recommends the flooded crypt of St. Zacharias Church. http://www.atlasobscura.com/places/the-flooded-crypt-of-san-zaccaria
For those of you that have been, is it a hidden gem or odd, but not worth the time (when time is limited)?
Grazie!
Melissa