Google Chrome, like any other web browser, offers an option to save websites as bookmarks to open them again at a later point in time. Bookmarks are placed in the bookmarks manager automatically and a toolbar can be displayed to access them directly from there without having to open the manager first.
The bookmarks toolbar is on the other hand disabled by default to provide more room for the actual websites that are displayed in the browser.
Users who want to keep it that way can install a bookmarking extension like Atomic Bookmarks to be able to access the bookmarks relatively fast but without losing any valuable screen estate.
Atomic Bookmarks placed an icon in the Google Chrome address bar. A click on that icon displays a search form and the bookmarks in their hierarchic structure.

Bookmarks can be accessed easily by clicking on them with the left mouse button. This will open them in a new tab in the web browser. Moving the mouse over a bookmark will display information about it including the url and date it was added to the web browser.
The breadcrumb navigation on top can be used to switch between folders rapidly.
The search will search for the entered keyword in all bookmarks and display only relevant results to the user.
Using Atomic Bookmarks instead of the bookmarks toolbar saves up screen estate but adds at least one additional click to the process of selecting a bookmark. The search is however handy especially for users with lots of bookmarks.
Atomic Bookmarks can be downloaded from the Google Chrome Extensions gallery.
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This functionality can be accomplished without an extension:
Right-click your Chrome shortcut (on your desktop, start menu, etc)
In the ‘target’ field, add this after all the text separated by a space:
–bookmark-menu
This will add a bookmarks menu button next to the page and wrench menu’s giving you access to all your bookmarks without the bookmarks bar and without having to install unnecessary extensions that waste system memory. (as well as giving a nicer looking button that blends in with the rest of chrome)
I would also like to add that you can search bookmarks via the omnibar so that function is not needed in an extension as well.