A lot of good suggestions already, those are some of my favorites up there.
I also really like Charles Dickens, but I admit I can understand why a lot of people don't. A Tale of Two Cities is one of my all time favorites, you have to read the whole book to like it. You hate it while you're reading it, if that makes any sense. Maybe you;d want to give it try for the sake of it.
Others are Kidnapped by Robert Louis Stevenson, Cup of Gold, The Grapes of Wrath and Of Mice and Men by John Steinbeck, and A Connecticut Yankee in King Arthur's Court by Mark Twain. All very good classics to my preferences.
"The world has been printing books for 450 years, and yet gunpowder still has a wider circulation. Never mind! Printer's ink is the greater explosive: it will win." - Christopher Morley, "The Haunted Bookshop."