There are more than 12,000 edible plants in the world, and this month, visitors to London's Kew Royal Botanic Gardens have a chance to "widen their horizons" and feast their eyes — and palates — on some of the more exotic.

The "IncrEdibles: A Voyage through Surprising Edible Plants" festival surrounds you with hundreds of plants suited for your plate. Featured exhibits include a towering pumpkin pyramid made of 75 types of pumpkins, a tour through a tropical garden and even the Global Kitchen Garden, which features 90 edible plants from around the world.

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(PHOTOS: Foodscapes You'll Want to Devour)

The festival also focuses on fungi, specifically with sculptor Tom Hare's "Fungi Fairy Ring," a series of sculptures that represent the seven types of edible fungi.

"With the first official Red List for fungi in Britain recently published, it is a momentous time for the conservation of fungi in the U.K.," Dr. Bryn Dentiger, the director of Kew's Fungarium, said in a news release. "This event is an opportunity to raise awareness about their importance to the health of the planet, their role as the hidden benefactors of most edible plants."

The festival runs through Nov. 3. You can check out some of the edible plants, exhibits and sculptures in the slideshow above.

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