The Seven Wonders of Nigeria

You've been reading about Dora Akunyili's charge to rebrand Nigeria. "Good people, Great Nation," goes the slogan. What if we had a list to direct tourists to seven most treasured destinations (everybody knows that in Egypt you must see the Pyramids and in India you must look for the Taj Mahal.) What would be on that list?

What are the Seven Wonders of Nigeria? Why?

Some suggestions are Yankari (I just visited), the much talked about Tinapa/Calabar experience, and maybe some of those beaches in Lagos.
Maybe you prefer the very historical, like Nok or Igbo-Ukwu sites; the cultural, like Argungu Fishing festival, Eyo masquerades, Durbar horseracing festivals; the macabre, like the bullet-ridden car in which Murtala Muhammed was assassinated.
Is there a church/mosque grand enough to merit inclusion on the list? A theater, museum, stadium? A football?

Chime in below.