wget
Wget is a computer program that retrieves content from web servers, and is part of the GNU Project. The name "wget" stands for World Wide Web-get. It supports downloading from HTTP, HTTPS, and FTP protocols.
Here is a tutorial done by someone. This tutorial in particular teaches you how to download albums from Imgur.com image site. This is helpful for those using Mac OSX,GNU/Linux, and Microsoft Windows (if you're using the program Cygwin that acts as a Bash terminal.) Open up your Terminal program and try it!