QS World University Rankings 2019

Four of the top ten universities are in the UK - Oxford, Cambridge, UCL and Imperial College - with Edinburgh also making it into the top 20.

However, the authors sound a word of warning: "The majority of universities from both the US and UK have fallen in rank this year. In most cases, this is because of a weaker score for international student ratio, one of the indicators used to compile the ranking (learn about the methodology here)...it may not be long before other universities begin to overtake the traditional heavyweights from the UK and US."