Delhi is a city that combines history with modernity in its own unique way. As you travel along the wide roads and flyovers of Delhi, you'll come across Mughal monuments, forts and tombs in the heart of the city. Delhi is one of the most historic capitals in the world, and two of its monuments-the Qutab Minar and Humayun's Tomb-have been declared World Heritage Sites. The Jama Masjid, one of the largest mosques in India, is built of red sandstone and white marble in the Indo-Islamic style.