Editing St John's College, Cambridge (section)

===Third Court===
Third Court is entered through Shrewsbury Tower, which from 1765 to 1859 housed an observatory. Each of its ranges was built in a different style. Following the completion of the college library in 1624, the final sides of the Third Court were added between 1669 and 1672, after the college had recovered from the trauma of the [[English Civil War]]. The additions included a fine set of Dutch-gabled buildings backing onto the River Cam and a 'window-with-nothing-behind-it' that was designed to solve the problem of connecting the windowed library with the remainder of the court.