Are dogs allowed?

yes dogs are allowed as long as they behave, they either have to sit on the floor or in your lap while on the train.

There were 2 dogs (well behaved) on train when I had ridden. One on lap other (slightly larger) on floor between owner's feet. No barking...no issues. Barely knew they were there. Neither were service animals.

I didn't see any dogs in the museum. I would be surprised if they were allowed.

Yes! And just like Christopher's answer... Plus Just like every where else, make sure you pick up after them.

I think only service dogs are. However you can call and find out.