Question regarding 2 modules installed via 'pip'

[Ferrous Cranus]

> Just as you use "which python" to figure out what "python" was executing, >"which pip" will help you figure out what "pip" is running.

root at secure [~]# which python3
/usr/bin/python3

root at secure [~]# cd /usr/bin/python3
-bash: cd: /usr/bin/python3: Not a directory

root at secure [~]# which pip
/usr/bin/pip

root at secure [~]# cd /usr/bin/pip
-bash: cd: /usr/bin/pip: Not a directory

WHAT THE FUCK IS GOING ON WITH THIS DAMN CentOS 6.4?

WHY CANT I JUST CD INTO HESE DAMN FOLDERS?