- Come on, kid. That's an important historical landmark!
- Look, some other time.

4 seconds sound clip from the Back to the Future Part II movie soundboard.

You can hear this line at 00:21:53.404 in the Blu-ray version of the movie.

Quote context

[...]

- Buttheads.

- Drying mode on. Jacket drying. Your jacket is now dry.

- Hey, kid. Hey, little girl, thanks.

- Keep it. I got a Pit Bull now.

- Save the clock tower! Hey, kid. Throw in 100 bucks, will you, and help save the clock tower.

- Sorry, no.

- Come on, kid. That's an important historical landmark!

- Look, some other time.

- Lightning struck that thing 60 years ago.

- Wait a minute. Cubs win World Series. Against Miami?

- Yeah, it's something, huh? Who would've thought? 100-1 shot!

- I wish I could go back to the beginning of the season, put some money on the Cubs.

- I just meant that Miami...

[...]