There are many website statistics tools available to check the traffic of your website or blog. Most of them will provide you information about the webpages and URL's of your website which are mostly visited.
Some of the website statistic tools available are AWstats, Webstats, Google analytics, statcounter etc. Most of these are free of charge

while some requires licensing fee :o Some of these like Google analytics and statcounter provide a code and you will have to enter this code in your website and get the statistics for your website. You can also put this code in the webpage for particular URL to get information about the statistics of the particular URL. This can provide you more information about the URL and the webpage of your website which is mostly visited.