London Mithraeum: Visit a Roman Temple Under London

The London Mithraeum was first discovered in 1954, but as part of the new Bloomberg HQ, it’s been restored to its original position. Now Londoners can step back 1,800 years, inside a Roman Temple!

Roman Temple

Finding a Roman Temple

Between 1952-54, a chance discovery on a bomb site revealed Roman remains. London was gripped by this exciting find and on some days 30,000 people were queuing to have a look around the site.

Roman Temple

Photo credit: Robert Hitchman © MOLA

It was only on the last day of the scheduled dig that they discovered the answer to unlocking these ruins; a small but perfectly preserved sculpted head of Mithras.

Roman Temple

A reconstruction of the sculpture in resin, on display on the mezzanine level. (Photo Credit: James Newton) The original is in the Museum of London.

This last minute find meant London had a choice. The media piled on the pressure not to build over the remains as planned, but to preserve them somehow.

“There is something grievously wrong with our planning if an important antiquity of this sort can be destroyed almost before it has been seen.”The Times, 1954

Eventually a compromise was reached. The temple was moved around 100m from its original site, built over a car park and lying there, pretty unloved from 1962 -2011.

Roman Temple

1962 Temple of Mithras reconstruction Queen Victoria Street (c) MOLA

Before we see the new Temple of Mithras, an important question hangs over us…

Who Was Mithras?

The cult of Mithras, a Roman cross between a religion and gentlemen’s club, had at its focus the young boy; Mithras.

Roman Temple

A second resin replica inside depicts the ‘tauroctony’ the central image of the cult; Mithras slaying a sacred bull inside a cave. Photo credit: James Newton)

The collection of Roman men would gather in a dark space. It was secretive and you had to know the right people to get in, adding to the drama of the ceremonies. The act of sacrifice represents fertility and the link between a real life bull and its zodiac equivalent alluded to a greater connection between man and the cosmos.

In the often harsh world of 1st Century AD, this space allowed men to feel they had a special place within the great plan of the universe.

London Mithraeum

The challenges facing the reconstruction team were numerous; how do you truthfully present remains which were only minimal? How do you communicate what was missing, conveying the space and scale? And how do you get across the gravitas and mystery of what happened here almost 2,000 years ago?

The solution is an immersive experience. Down steps, leading you to the level of Roman London you enter a dark space. It’s silent for a while until the ‘ceremony’ begins; whispers and chanting growing louder.

Roman Temple

Afterwards the lights come up and you’re free to explore the space.

Roman Temple

The reconstruction was completed with utmost integrity, they identified the original materials from the 1950s site, discarded elements like the elaborate mosaics – dreamt up by 1950s builders who assumed the floor would’ve been similar!

Most of the masonry is from the original Roman structure, the floor is a hand painted resin cast of actual roman soil, laid down and trampled on by archeologists for an authentic look.

Roman Temple

My favourite element was in fact a modern touch, hanging shapes lit from above. Meaning as the light falls, they create a capital and shaft of light which becomes a column.

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Roman Artefacts

As well as the temple itself, some of the most exciting Roman artefacts ever found in London are also on display here.

Roman Temple

Six hundred of the 14,000 Roman artefacts uncovered on the Bloomberg site are displayed on the ground level of London Mithraeum Bloomberg SPACE. (Photo credit: James Newton)

It’s the largest single collection of objects telling us what life in Roman London was like. Here are some of my highlights;

Roman Temple

Above is the earliest dated writing tablet from London 8 January AD 57 (C. MOLA). One of 407 found here, the above writing tablet records that “I Tibullus the freedman of Venustus, have written and sau I owe Gratus the freedman of Spurius 105 denarii from the price of the merchandise which has been sold or delivered.”

It’s the first record of a financial transaction in The City of London!

Roman Temple

The amber amulet (in real life, smaller than half your fingernail) is a miniature gladiator’s helmet, dating from AD 43-170. We think the precious material was imported from the Baltic region and it was believe to have special healing properties.

Roman Temple

As well as Roman items like this leather shoe sole, older items were found that made their way to London.

Roman Temple

Dating from AD 20-50 this silver coin was minted in eastern Britain before Romans controlled that area. Showing a horse with an ear of corn, it’s possible that this coin was brought to London by one of Boudicca’s followers, the Iceni tribe which razed Londinium to the ground in AD 60-61.

Visit the London Mithraeum

Visiting is free but you need to prebook a slot. Plan your visit here.

Discover More of Roman London

More London Inspiration


  • Fran Bell


    Great site! So interesting and I’m making lists of what to see. You capture why it’s so fun to live and work in London.

    May 24, 2018 at 9:36 am
  • S Fearne


    Loving your site and look forward to each nugget as it enters my Inbox. Definitely encourages me to explore London more. Great for sharing with friends and, the grandchildren love the stories. Thank you

    May 30, 2018 at 9:42 am

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