Mexican pyramid has two more inside, scientists discover
Kukulkan pyramid built like ‘Russian nesting doll’ – a second structure had already been found under its exterior and now a third has been revealed

Experts have discovered a third structure within the Kukulkan pyramid in eastern Mexico, revealing that it was built like a “Russian nesting doll”, experts said on Wednesday.

A 10m tall pyramid was found within another 20m structure, which itself is enveloped by the 30m exterior visible at the Mayan archeological complex known as Chichen Itza in Yucatan state.

The smallest pyramid was built between the years 550 and 800, engineers and anthropologists said.

The middle structure had already been discovered in the 1930s and dates back to the years 800-1,000 while the largest one was finished between 1050-1300.

The discovery suggests that the pyramid, also known as El Castillo (The Castle), was built in three phases.

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