I conducted a concert on Sunday in a unique venue: The Haskell Opera House, which is located in Derby Line, VT, USA/Stanstead, QC, Canada.  Built in 1904 as a symbol of international cooperation, the hall literally straddles the US-Canadian border; the stage is in Canada, and most of the audience seating area is in the United States.  Here are some pictures:

The exterior:

Another look at the exterior, with a row of potted plants tracing the border; an international marker is set at the end of the row:

Border Marker:

Looking towards the stage, with the borderline in the foreground:

Childlike attempt to either provoke Homeland Security or achieve a measure of symbolic dual-citizenship: