Mecca (or Makkah) is the holiest Muslim city where there is the holiest Muslim building called Kaaba. The Kaaba is surrounded by the holiest worship building that is called Al-Masjid Al-Haram (or the Grand Mosque).
The holiest city in Islam is Mecca (or Makkah) in the Kingdom of Saudi Arabia.Mecca:is having the holiest Islamic building, the Kaba, that is first God worship house on earth.is the birth place of prophet Muhammad (PBUH)Muslims all over the world, during their praying, face the direction of Mecca (or more precisely the direction of Kaba)
Islamic people need nothing to worship Allah. Because they believe that Allah is as close as their own heart. However, they just need a small mat, a clean dry place, and to know the direction facing Kaaba, or Mecca, or Saudi Arabia for praying worship.
Mihrab- a niche in a house of worship indicating the direction of Mecca 8===D
The House of Almighty Allah known as Ka'abah is the house of worship that Muslims believe that Abraham helped Ishmael build in Mecca.
Mecca (house of allah)
AlMasjid Alharam (the Grand Mosque) surrounding Kaaba
Mosque.
Kaaba, the first God house on earth; is located in Makkah (or Mecca) and is surrounded by AlMajid al-Haram; or called the Grand Mosque; (The first and greatest Mosque in the world) and also Makkah (or Mecca) is the birthplace of prophet Muhammad (PBUH)
Catholics.
Kaaba in Makkah (or Mecca) in Saudi Arabia
Muslims do not worship the 5 pillars of faith. The 5 pillars are the foundation of the Islamic religion. The first one is declaring that there is only one God, and that Muhammad (peace be upon him) is His messenger. The second is praying 5 times daily. The third is fasting in the Holy month of Ramadan. The fourth is giving charity to the needy, and the fifth is making Pilgrimage to the first house of God ever built (Kaba in Mecca).
It depends entirely on the religion.