Hidden Alleys Food Art Festival The Emma Inn project in the alley next to TENT Rotterdam is part of the Hidden Alleys on the Maas Food Art Festival programme. On 10+11 and 17+18 September, different art installations, including Chez Emma, can again be seen in Schiedam’s historical centre. The route leads along hidden alleys, an old soda factory, an abandoned warehouse, and a vacant church, past the Stedelijk Museum Schiedam and gallerie Emmy Miltenburg. Fifteen narrow, dark alleys are the backdrop for art installations, special food concepts, and a colourful dining room.