Thanks to the Internet making everyone appear "just next door", it's possible to create a "Virtual Layout" whereby one owner's layout pretends to connect directly to another's.

In HO and N scales, members of the "PRR Virtual Layout" do just that. Plus, they are modeling specific prototypical areas to enough detail that a visitor who is familiar with the prototype will readily recognize it.

More guidelines about participation are included on the "How to Participate" page.