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In 1984, one monk and his acolytes had grown tired of the mounting litter in the Sisaket area of Thailand near the Cambodian border. To promote recycling and the cleaning of the landscape, the monks encouraged everyone in the area to bring them recycled beer bottles that would be used to build a temple complex. The result was Wat Pa Maha Chedi Kaew: the Million Bottle Temple.

Using mostly green Heineken and brown Chang (the local favorite) beer bottles, the monks began with a temple and later formed a crematorium, water towers, sleeping quarters and even toilets. Pushed into the concrete of the walls, the recycled bottles—around 1.5 million of them—form every detail of the buildings, inside and out. Aside from whole bottles, the monks also incorporated bottle caps to create mosaics and Buddhist designs inside of the temple.

Visit Atlas Obscura for more on Wat Pa Maha Chedi Kaew, the Million Bottle Temple of Thailand.

Other eye-catching temples around the world:

• Spiritual monkeys frolic around this Nepalese temple
• An enormous dragon scales the walls of this 17-story temple
• This temple, built by an eccentric religious leader before his death, sits guarded and in ruins