The Bell Caves in Israel have a unique sound.
These large connected cavenous spaces are very reverberant and echoey, and sound rather like large churches. Beautiful!
As explained by Trevor Cox from Sonic Wonders:
[quote_box_center]What makes the Bell Caves more unusual is the acoustic effect made because there are many of these chambers connected together by passageways. As the sound moves between the large chambers along the passageways, a very distinctive reverberance is heard, as sound sloshes about from one chamber to another on the beige colored limestone walls.[/quote_box_center]
The Bell Caves are ancient quarries near Maresha, Israel, which were excavated at different times in history. The largest of the chambers are over 5 meters high.