Whose TARDIS?

Cambridge MA

Description

Wandering around the back streets behind Harvard as I was strolling across a bridge on Walden Street, I spy a TARDIS on the roof of an old school house. What was once Abraham Lincoln School, but now appears to be private apartments, on the roof is a TARDIS. Whose TARDIS? What is the back story on it? Inquiring minds want to know. Thanks.