Pack your interest in history and academics
Don't forget your architectural antennae
Read up on some Rembrandt
and keep your musical ear cocked
a prayer for good weather
a desire for shopping and eating
in short: a Lust for Leiden !
Miscellaneous: On this old map you can see the city centre of Leiden. It has hardly changed since then. You can still recognize the street paterns and most of the monumental buildings... by clicking on the picture you can get the full size.