Two customizable widgets are available in the control panel.
The Popular Content widget to shows popular entries for today, this week, the current month or overall views.
The Viewed Now widget shows content items being currently viewed.
In multi site environments, you can choose the site to show items from, or enable showing items from all sites.
With the widget you can show the most popular items. You can limit the widget contents to a specific section, and wether the grand total is shown, and/or results by week or month:
You can add the special 'Views Work' field type to your fields, and then to your entry types.
This allows you to view the pageviews in your entry editor pages, and you can show them in lists too (by clicking the gear icon and selecting the views work field):