Board Thread:General Discussion/@comment-6739926-20140419135501/@comment-8345449-20140419163856

The Wishing Well is most likely to be the Storybrooke version of Lake Nostos (i.e. brought over by the curse), given that the waters have similar properties and that when Emma and Mary-Margaret dove through the portal in Las Nostos they came back up out of the well.

It has been stated that the waters of the Well of Wonders flow through all realms and both Wonderland and Agrabah have one version of the Well, which Nyx guards. I doubt the gazebo in Victorian England is connected to the Well of Wonders though simply because I don't think Alice and Cyrus would bring their daughter on a picnic to a place where a creepy-looking creature like Nyx could be lurking around. It was probably just a re-used set piece by the production team.

I don't think the Neverland waterfall, Lake Nostos and Well of Wonders have any relation. The waters from the Well of Waters are far more powerful than either the waters from Nostos or the Neverland waters - they have the ability to bring back the dead, And Nyx is a far more powerful guardian than the Siren.