A team of scholars have been documenting the sound of worship for six years. Since the lockdown, they have heard a different form of religious expression.
Visitors to these sites had one particular religious ritual that may strike some as strange: they carved graffiti in important and sacred places.
Voodoo is often seen as a practice involving magic. In Haiti, Voodoo is a religion born out of the struggle of slaves. And today, it is used as a form of healing and protection.
In the 1960s many Americans may have only known Hinduism through meditation, but the story of this country's relationship with Hinduism is much longer and more complex.