The sixth largest pyramid in the world used to house sporting events.  When  Memphis had a tough time keeping a basketball team,  the arena sat vacant in between monster truck shows and occasional concerts.  Whether or not it appears to resemble any other coliseum, now, is irrelevant. Although the choice in design for a sports facility was questionable, it is still a viable and impressive site.

Pyramid Arena Facts
Pyramid Arena – Google Maps

UPDATE:
A Look Inside The Pyramid And Bass Pro Shops’ Progress