and on which highway rides the TARDIS?

Sometimes: my work is one dimensional, my dates are two dimensional, my motives are three dimensional, and my arrival fourth dimensional. Usually late.

And of course, there's the 5th Dimension:



But what is really cool, is imagining ten dimensions:



Via Laughing Squid and Chris Glass:

“Imagining the Tenth Dimension” is a book by Rob Bryanton where he explores the possibilities of going beyond 4 dimensions. He created an animated video for chapter one of the book illustrating his concepts behind moving from one to ten dimensions.