Hazret Sultan Mosque, also known as the Palace of Peace and Reconciliation, is a prominent Islamic religious site located in Nur-Sultan, the capital city of Kazakhstan. The mosque is named after the Kazakh Sufi saint, Khoja Ahmed Yasawi, who was an important figure in the spread of Islam in Central Asia. The mosque was designed by the British architectural firm Foster and Partners and was completed in 2008.

The Hazret Sultan Mosque is one of the largest mosques in Kazakhstan, and it can accommodate up to 10,000 worshipers at a time. The mosque's dome is 51 meters in diameter, making it one of the largest domes in the world. The mosque also has a 77-meter-high minaret, which is the tallest in Kazakhstan. The interior of the mosque is adorned with intricate mosaics, tiles, and calligraphy, and it features a large prayer hall, a library, a conference hall, and a museum.

The Palace of Peace and Reconciliation, which is part of the mosque complex, was designed by the same architectural firm and completed in 2006. The Palace serves as a venue for international conferences and events, and it has hosted numerous high-profile gatherings, including the Congress of Leaders of World and Traditional Religions.