Ticking sound after engine is turned off

I recently noticed, after parking my car in the garage, that my '92 Toyota Corolla makes a pronounced ticking sound for some minutes after the engine is turned off. I even looked underneath the engine to see if there was fluid leaking, but I did not see any. Still the ticking (almost dripping) like sound continued for many minutes. Any ideas as to why?

hot exhaust cooling

Don’t worry, that’s normal for all engines as the hot metal contracts when cooling down.

Thanks for the response. I recently had my entire exhaust replaced from engine to tail–maybe that’s why I started noticing it more