Barn (The Day of the Doctor)

This barn stood for many years and had a particular significance for the Doctor, with four of his incarnations visiting it at different points in their timestream.

During the First Doctor's childhood, he would retreat to the barn to cry so that the other children wouldn't hear him. On one such occasion, Clara Oswald used telepathic circuits to land the Doctor's TARDIS in the barn and comfort the Doctor as he slept, telling him the story of how he would return to the barn one day and that he should use fear to his advantage. (TV: Listen)

The War Doctor returned to the barn, bringing with him the Moment, which he intended to use to destroy Gallifrey, the Time Lords and the Daleks. However, the Moment opened a portal to his future to show him the consequences of his actions.

The War Doctor returned from the future with the Moment ready to detonate. Soon after his arrival, the Tenth Doctor, Eleventh Doctor and a younger version of Clara Oswald arrived to assist him in Gallifrey's destruction. However, the Moment showed them the direct consequences of their actions and the Eleventh Doctor decided to alter their plan. Granero (The Day of the Doctor)