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Pantheon, Rome

The Pantheon is an ancient Roman building in Rome, Italy, originally associated with the Roman gods and later converted into a Christian church.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Pantheon is an ancient Roman building in Rome, Italy, originally associated with the Roman gods and later converted into a Christian church. The present structure was rebuilt under Emperor Hadrian in the 2nd century CE and is widely regarded as one of the best-preserved monuments of ancient Rome.

History

The first Pantheon was commissioned by Marcus Agrippa in the late 1st century BCE, but that structure was destroyed. The present building stands on the same site and was rebuilt under Emperor Hadrian, probably around 118–128 CE. It was later converted into a Christian church in 609 CE and has remained in use since then.

Architecture

The Pantheon combines a classical portico with a circular rotunda and a large unreinforced concrete dome. The dome features a central oculus, an opening that provides natural light. The dome is one of the most celebrated achievements of Roman engineering and remained the largest of its kind for centuries.

Religious use

Originally linked to Roman pagan worship, the building was dedicated as a Christian church in 609 CE. It is still used as a place of worship under the name Santa Maria ad Martyres or Santa Maria Rotonda.

Influence and preservation

Because it survives largely intact, the Pantheon has served as a major reference point for architects and historians. Its preservation is often cited as exceptional among ancient Roman monuments, and the building has influenced later Western architecture.

Key facts

  • The present Pantheon stands on the site of an earlier temple commissioned by Agrippa during Augustus’s reign.
  • The building was rebuilt under Emperor Hadrian, probably around 118–128 CE.
  • The Pantheon was converted into a Christian church in 609 CE and has remained in use since then.
  • Its dome is one of the most celebrated achievements of Roman engineering and remained the largest of its kind for centuries.
  • The building is noted for its preservation and influence on later Western architecture.

Frequently asked questions

What is the Pantheon in Rome?
It is an ancient Roman building in Rome that was rebuilt under Hadrian and later converted into a Christian church.
Who built the Pantheon?
The original Pantheon was commissioned by Marcus Agrippa, and the existing structure was rebuilt under Emperor Hadrian.
When was the current Pantheon built?
The standing building was rebuilt in the 2nd century CE, probably between about 118 and 128 CE.
What does the name Pantheon mean?
It comes from Greek words meaning “all gods.”
Is the Pantheon still in use today?
Yes. It has functioned as a Christian church since 609 CE and remains in use.
Why is the Pantheon famous?
It is famous for its preservation, its large concrete dome, and its influence on architectural history.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Pantheon,_Rome
    Supports: Original Agrippa temple, Hadrianic reconstruction, approximate dating, and conversion history.
  2. Britannicahttps://www.britannica.com/topic/Pantheon-building-Rome-Italy
    Supports: Reconstruction under Hadrian, architectural description, and church dedication in 609 CE.
  3. History.comhttps://www.history.com/articles/pantheon
    Supports: Name origin, original temple association, and early destruction history.
  4. World History Encyclopediahttps://www.worldhistory.org/timeline/Pantheon/
    Supports: Best-preserved ancient Roman building and completion date around 125 CE.
  5. ArcheoRomahttps://www.archeoroma.org/sites/pantheon/
    Supports: Agrippa origins, consecration in 609, and continued Christian use.
  6. Smarthistoryhttps://smarthistory.org/the-pantheon/
    Supports: Hadrianic rebuilding and evidence from stamped bricks.