This paper discusses some features of financial institutions and instruments which originated the financial crisis triggered by increasing default rate, household real estate and financial asset depreciation combined with U.S. subprime mortgages. The first part presents major crisis events in a chronological order. The second part describes the interconnection of the institutions and markets which engendered a global shadow financial system. The third part focuses on an overview of measures taken by government authorities and large banks to bring about possible solutions for the global financial crisis.