http://www.publicroot.org/technical/INS-TLD-compilation.txt

This is a complete list of TLDs that had been detected as in-use on the Internet as of the survey date on the file. This means that a DNS server somewhere on the Internet had to announce the TLD on the Internet. If the DNS system is open, then it is likely that a TLD list that is this fucked up would exist in THE root zone. At present the restricted ICANN TLD registry (maintained by IANA) keeps us safe from this insanity. If you are bored enough, scroll to the K’s and find "Kularski". Any yahoo (its on the list too) can have a TLD presence.