I've not been to Paris for years until I recently had the chance for a 24 hour business trip.  Only after I'd booked the hotel did I realise how close I was to the Eiffel Tower.  It was an opportunity not to be missed as I've not been up the tower since 2001.  It was a beautiful spring evening with lovely light, so I queued for just 10 minutes and took the lifts to the top.  A carousel made an interesting night time subject too.  It is a spectacular sight and well worth visiting.