Les Miserables by Victor Hugo: (Find it here)
It is considered to be one of the greatest novels of the 19th century. It is a French historical novel published in 1862. It explores the changes in the French society after revolution. The plot tells the story of four people-Bishop Myriel, Valjean, Fantine, and Marius, who meet, part, then meet again during the most agitated decades of 19th-century France. It also tells the story of the 1832 revolution and describes the unpleasant side of Paris. The novel is in essence a plea for humane treatment of the poor and for equality among all citizens.
Quo Vadis by Henryk Sienkiewicz: (Find it here)
Quo Vadis is a story of love that develops between a young Christian woman, Ligia, a captured King's daughter and a one-time hostage of Rome, is now a foster child of a noble Roman household and Marcus Vinitius, nephew of Petronius, a noble Roman who belonged to the world that was in favor at the court of Nero. The story locates itself in Rome during the reign of emperor Nero. It gives a wonderful vision of ancient Rome and early Christianity.
Count of Monte Christo by Alexandre Dumas: (Find it here)
It is an adventure story of Edmond Dantes, who was a young, successful merchant sailor. The primary themes of the novel are hope, justice, vengeance, mercy and forgiveness. It focuses on Dantes who is wrongfully imprisoned, escapes from jail, acquires a fortune and sets about getting revenge on those responsible for his imprisonment.