Top 10 Most Famous Cultural Monuments Around the World. 1. The Kaaba (Masjid al-Haram) is a cuboid-shaped building in Mecca, Saudi Arabia, and is the most sacred site in Islam, oldest and top the most Famous Cultural monuments in the world.
STD's are diseases caused by bacteria or viruses. AIDS is a syndrome caused by having HIV, which is a type of STD. So HIV is the STD, AIDS is a very very late symptom.
What are sexually transmitted diseases? Sexually transmitted diseases (STDs), also called sexually transmitted infections (STIs) or venereal diseases, are infections caused by organisms that can be transmitted from one person to another through sexual activity and intimate contact.