[brudgers]

Algol 60 lives on via Lisp.

If you want to use it, Algol 60 an option with Dr. Racket: http://docs.racket-lang.org/algol60/

If you can tolerate a later version, there's Algol 68 Genie: http://jmvdveer.home.xs4all.nl/algol.html

[smokeapotamus]

I wasn't aware of Dr. Racket supporting it. Thanks for the link!