clipped from: weburbanist.com 
A good book often has the ability to pull us into a different place and time. This unique Thames Tunnel book was used to promote the tunnel when it opened in 1843. It now calls Bristol reference library home. The holes in the cover of John Harrison and His Chronometer were meant to show off the artwork inside, but in the right lighting, cause the images to glow seductively. Other books can literally help you find your way with a map that doubles as a cover.
