I ran across this search engine for over 4 million properties in 50 countriesbut no US to be found (just yet). Currently you can search for nearly 3.5 million listings in Europe, 7,000 in Africa and 30,000 in Asia to purchase or rent on Properazzi.com.
Properazzi is very user-friendly and also offers additional news/information about the different markets- check it out!
