Owned by the Central Bank and accessed through its front doors, the cavernous vault that houses what is commonly known as the ‘Jewels Museum’ is not to be missed. The Safavid, Qajar and Pahlavi monarchs adorned themselves and their belongings with an astounding range of priceless gems and precious metals, making this collection of bling quite literally jaw-dropping. Star pieces include the Globe of Jewels and the Peacock Throne.

　　Pick up a guidebook (IR40,000) at the shop as you enter, or take one of the regular professional tours in English, French, German or Arabic – it’s included in the ticket price and worth waiting for as there are few descriptions in English.

　　Cameras, phones, bags and guidebooks must be left at reception. Be careful not to touch anything or you’ll set off ear-piercing alarms.