 Hindu pilgrimage destinations may be holy cities (Varanasi, Badrinath); rivers (the Ganges, the Yamuna); mountains (several Himalayan peaks are sacred to both Hindus and Buddhists); caves (such as the Batu Caves near Kuala Lumpur, Malaysia); temples; festivals, such as the peripatetic Kumbh Mela, in 2001 the biggest public gathering in history; or the tombs and dwelling places of saints (Alandi, Shirdi).Beginning in 1894, Christian ministers under the direction of Charles Taze Russell were appointed to travel to and work with local Bible Students congregations for a few days at a time; within a few years appointments were extended internationally, formally designated as "pilgrims", and scheduled for twice-yearly, week-long visits at each local congregation.International Bible Students Association (IBSA) pilgrims were excellent speakers, and their local talks were typically well-publicized and well-attended.