Hagia Sophia in Istanbul, originally a Christian cathedral built in 537 CE, was converted into a mosque in 1453, revered by both Christians and Muslims.

The Quran is the primary sacred text of Islam, believed by Muslims to be the literal word of God as revealed to Prophet Muhammad. It serves as the ultimate source of guidance for Islamic beliefs and practices, distinguishing it from the Torah (Judaism), Bible (Christianity), and Vedas (Hinduism).

The Guru Granth Sahib is the sacred text of Sikhism, considered the eternal Guru. It contains hymns and teachings from the Sikh Gurus and other spiritual figures, guiding Sikh worship and ethics.

The Kaaba, located in Mecca, is the holiest site in Islam, considered the House of God. Muslims face it during prayers (Qibla) and visit it during the Hajj pilgrimage.

Hinduism teaches Karma as the law of cause and effect, where actions in this life influence future outcomes, including reincarnation. This concept is central to Hindu ethics and spiritual goals.

Zakat is a core practice in Islam, one of the Five Pillars, requiring Muslims to give a portion of their wealth to charity, typically 2.5% annually, to support the needy and purify wealth.

Hajj is the Islamic pilgrimage to Mecca, one of the Five Pillars of Islam, obligatory for Muslims who are physically and financially able. It involves specific rituals to commemorate events in Islamic history.

The Talmud is a sacred text in Judaism, a compilation of rabbinic teachings and interpretations of the Torah, guiding Jewish law, ethics, and traditions.

Shahada is the Islamic declaration of faith, one of the Five Pillars, where Muslims profess belief in one God (Allah) and Muhammad as His prophet, marking entry into the faith.

Salat is the Islamic practice of performing five daily prayers, one of the Five Pillars, which Muslims undertake to maintain spiritual connection with God at specific times each day.