Sound can bounce, slide and be focused. It travels in weird ways if the circumstances are just right.
Chatty architecture is everywhere.

"The Sound Book: The Science of the Sonic Wonders of the World" by Trevor Cox
Architecture's Secret Sounds Are Everywhere by Craig Childs
7 Whispering Galleries From Around the World You Can Visit by Michele Debczak
Acoustic Mirrors & Whispering Galleries on Wikipedia

Music by the God of internet music Kevin Mac Leod:
Study and Relax
Welcome to Horrorland
Cool Vibes
CC Attribution 4.0