Mecca(Al-Masjid Al-haraam, kaaba) and Medina(Al-Masjid Al-Nabawi) in Saudi Arabia and Al-masjid Al-Aqsa in Jerusalem.
Islamic architecture is a term used to describe any building that Islamic principle was considered in its design, regardless of its function, therefore the Islamic architecture is not sacred itself. But the term often mistakenly used to describe "mosques" only, the places of worship in Islam and are very sacred for Muslims.
The Islamic sacred text is called the Qur'an
For Lutherans, most catholic sacred places.
Religious places and places of worship are usually preserved as sacred.
Partners for Sacred Places was created in 1989.
Muslims don't worship any building. Even, the Kaaba (that is the most sacred Islamic building) is not worshiped by Muslims but respected and honored by Muslims. If you wish to read about places where Muslims worship (both houses of worship and sacred sites) read the Related Question below.
There is the Quaran, which Muhammad was a part of.
Mecca is the Holy Land not the city
Jihad...a holy was undertaken as a sacred duty
The web address of the Partners For Sacred Places is: http://www.sacredplaces.org
The phone number of the Partners For Sacred Places is: 215-567-3234.
The Temple on the Mount