A door (and I'll include all portals in that) is a barrier, but also an invitation to our persons and to our imaginations. What lies beyond the green door? What lies beyond the battered doorway into some derelict property? What lies beyond the small wooden door in the wall of a castle? Of course, a door is there to be opened, so let's have a look at some doors and imagine what may lie beyond.
A French door in St Malo
A random metal door in a random old wall
The Old Chapel Door
New Door
Door and Two Windows
Door in a Wall
Through a Door a Mystery Lies
To an Old Door a Foyer Leads
A Grand Door
A Hobbit Door?
No, not a Hobbit Door but a Chapel Door
A Gated Door
Industrial Door
That's just a start and it reminds me to renew the lookout for doors. Another project and perhaps not a bad subject for a competition as well.