Monday, 21 February: Miles Kane at Square One in Crewe, supported by Crewe's own Sumo Kings and Iron Door Club.

BBC: Staffordshire unsigned bands news - February 2011

Yet, from the wrought iron door hardware to the centuries-old walls to the fine Rhine Wine, none of this technology was visible.

FORBES: The Unhidden Machine

Even a man as brilliant as Leonardo da Vinci felt the need to bend horseshoes and iron door knockers, just to show that he could.

NEWYORKER: The Strongest Man in the World

At the top of the stairs, he tried the dead light switch again, then closed the iron door behind him and walked out into the empty street.

NEWYORKER: Waiting

Benny Avni tried the iron door.

NEWYORKER: Waiting

Blocking the way up the stairs was a massive yellow iron metal door that sealed off access to the upper two floors of the house.

CNN: A visit to Osama bin Laden's lair

They were wrestling a heavy iron frame into a side door in the tunnel.

NEWYORKER: Boss Rail

Iron bars cover the windows and screen door.

NPR: Calif. Program Helps Rid Triggers of Asthma

Like many Moscow apartments, it did not look much from the outside - a heavy, grey-steel security door, a scruffy communal entrance hall, a grand old staircase with a cast-iron banister spoiled by multiple layers of shiny, off-blue institutional paint.

BBC: In Moscow, history is everywhere