Raptors at Skydome...
The Lightning also played in the "Thunderdome" (now known as Tropicana Field) for three seasons. They routinely pulled in crowds well in excess of 20,000, which is why the Whatever the St Pete Times Forum is now called Arena was built with such a high capacity (which has subsequently been reduced considerably).
Neither setup was a viable long-term solution, which is why they were only temporary.