Easter Island’s monumental stone heads are well-known, but there’s more to the story: all along, the sculptures have secretly had torsos, buried beneath the earth.

Archaeologists have documented 887 of the massive statues, known as moai, but there may up as many as 1,000 of them on the island. Most were carved from volcanic rock between 1100 and 1680.

While the island is a popular tourist destination, the statue’s sheer size certainly discourages the type of theft experienced at other historic archaeological sites.

The Easter Island bodies were news to us, but apparently this is not a recent discovery. Photographs of the statues undergoing excavation began circulating in May of 2012, and Live Science asserts that archaeologists have actually known about the bodies since archaeological research on the island, located 2,000 miles west of Chile, began over a century ago, in 1914.

Photo courtesy of the Easter Island Statue Project.

“There are about 150 statues buried up to the shoulders on the slope of a volcano, and these are the most famous, most beautiful and most photographed of all the Easter Island statues,” Easter Island Statue Project director Jo Anne Van Tilburg told Live Science. “This suggested to people who had not seen photos of (other unearthed statues) that they are heads only.”

It was photographs of Tilburg’s 2010 excavations of two of the statues’ buried bodies that sparked online interest in the missing halves of these ancient sculptures. The images attracted so much interest when people started emailing them in 2012 that the Easter Island Statue Project’s website crashed under a rush of three million hits.

Tilburg’s work, which began in 2000, marked the first time the moai were excavated by a scientific team that thoroughly documented the process. “It’s always important to get beneath the surface of things,” she told Fox News.

See more photos of the Easter Island statues below.

An excavated statue on Easter Island. Photo by Greg Downing, courtesy of the Easter Island Statue Project.

More Easter Island excavations. Photo courtesy of the Easter Island Statue Project.

Photo courtesy of the Easter Island Statue Project.

Photo courtesy of the Easter Island Statue Project.

Photo courtesy of the Easter Island Statue Project.

Photo courtesy of the Easter Island Statue Project.

Excavations on the Easter Island head. Photo courtesy of the Easter Island Statue Project.