Topic: Mosaic
Fishbourne Roman Palace
One of the largest villas found in the UK, and some of the earliest gardens, it was found by someone digging a hole for a new water main. Now it's a mix of preserved mosaic floors, and recreated gardens.
I also went to the Celtic day there later on.
British Museum
Visiting the British Museum in 2001, not long after the glass-roofed Great Court opened.