How to pass multiple parameters with a URL or link_to?

Hi all,

==in my countroller i want to do something like this:==

photo_controller

def show
@photo = Photo.find(params[:photo_id])
@place = Place.find(params[:place_id))
end

==so that in a view i can do something like this:==

place->show.rhtml

<%= @place.name %>

<%= image_tag @photo.file.url %>

how do i write the link_to statement so that i can do that? something
like:
link_to “Show the picture of the place”, { :controller =>
“photo”, :action => “show”, :photo_id => @photo, :place_id => @place}
%>

Thank you very much.