Gate of All Nations

The Gate of All Nations, also known as the Gate of Xerxes, is located in the ruins of the ancient city of Persepolis, Iran.
The construction of the Stairs of All Nations and the Gate of All Nations was ordered by the Achaemenid king Xerxes I, the successor of the founder of Persepolis, Darius I the Great.

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Building

It is from an inscription in the gate, known as the XPa inscription, that the building is known as the Gate of All Nations, constructed under the reign of Xerxes I.