Where to take 2 Year Old on his B’day?

Hi,

My boy is getting 2 YO this Friday and we are planning to take him out on that day. Last year, we had taken him to 7 flags safari and he liked that.

Any ideas on good places for a 2 YO to spend a day at? The weather forecast is not too good, so some indoor options may also be required in case it does rain.

Any inputs will be very helpful.

Thanks in advance,

Mamta