The Puzzle Parlour

Roll up, roll up, step on inside!

SPOILERS!!!

I wonder what happens if you knock (click) on the front door?

What cheese is made backwards?

Edam (case-insensitive)

Click in the centre of those concentric circles to turn the light on

The magnifying glass will expand (one might even say, be magnified) when hovering over a point of interest...

Points of interest (from left to right):

The gramophone on the far left

The grandfather clock face (click 'X' to exit, that is, 10 in Roman numerals)

The book lounging out on the armchair (navigate to the end of the book to exit)

The block of cheese on the round side table

The newspaper atop the chest of drawers on the far right