Top 10 World's Smallest Apartments: 10. Apartment In Poland - 140 Sq. Ft. 9. Apartment In Paris - 130 Sq. Ft. 8. Apartment In Manhattan - 100 Sq. Ft. 7. Apartment In Manhattan - 90 Sq. Ft. 6. Apartment In Paris - 86 Sq. Ft. 5. Apartment In Manhattan - 78 Sq. Ft. 4. Apartment In London - 60.5 Sq. Ft. 3. Apartment In Hong Kong - 40 Sq. Ft. 2. Apartment In Hong Kong - 16 Sq. Ft. 1. Cage In Hong Kong - 4 Sq. Ft. IMAGE SOURCE: "GOOGLE SEARCH" SOURCE: http://www.therichest.com/rich-list/most-shocking/the-worlds-10-smallest-apartments-will-shock-you/