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Arch of Constantine, Rome

Three-bayed triumphal arch with columns and carved reliefs against a blue sky
Photo: NikonZ7II (Paris Orlando), CC BY-SA 4.0, Wikimedia Commons

The essentials in 10 seconds

Entry
Free, viewed from outside — the arch is fenced
Hours
Open 24 hours, free, viewed from outside the fence
Time on site
A typical visit without queueing. In high season add 15–30 minutes.
15 min
With kids
Fine with kids
Date
AD 315 — for Constantine's tenth year in power
Size
≈ 21 m tall, ≈ 25.9 m wide
Time needed
10–15 minutes
Nearby
Colosseum, Palatine Hill, Roman Forum
Location
Piazza del Colosseo; Metro B Colosseo, 2 minutes
Coordinates
41.88983, 12.49061YesGo MapGoogleApple

Key facts

AD 315dedicated to Constantine by the Senate and People of Rome
SourceEnglish Wikipedia
≈ 21 mtall — the largest surviving Roman triumphal arch
SourceEnglish Wikipedia
3 baysa central passage and two side ones
SourceEnglish Wikipedia
Spoliareliefs and statues reused from Trajan, Hadrian and Marcus Aurelius
SourceEnglish Wikipedia
8 Dacianscaptive statues on the attic, taken from Trajan's Forum
SourceEnglish Wikipedia

Arch of Constantine history

The Senate and People of Rome dedicated the arch in AD 315, marking Constantine's tenth year in power and his victory over his rival Maxentius in 312. Constantine was the first emperor to back Christianity, yet the arch carries no Christian symbols — its inscription carefully credits 'the inspiration of the divinity'.

It's the largest Roman triumphal arch still standing: about 21 metres high and 25.9 metres wide, with three bays. In the Middle Ages the Frangipane family built it into their fortifications, which may be why it survived so well.

A monument made of other monuments

The fascinating thing about the arch is its spolia — pieces reused from older monuments. The roundels over the side arches come from Hadrian's time, showing hunts and sacrifices. The rectangular panels on the attic are from a monument to Marcus Aurelius. The big reliefs inside the central passage and the statues of captive Dacians come from Trajan's Forum. The earlier emperors' heads were recarved as Constantine.

The carvings made for the arch itself in the 4th century are the narrow frieze above the side bays — noticeably flatter and simpler, a neat lesson in how Roman art changed over two centuries.

What the inscription says

The attic inscription, repeated on both faces, reads in translation: "To the Emperor Caesar Flavius Constantine, the greatest, pious and blessed Augustus, because, inspired by the divine and by greatness of mind, he avenged the state with his army — the Senate and People of Rome dedicated this arch, decorated with triumphs." Smaller texts over the side bays wish him well for his tenth and twentieth years in power.

What to look for

  • The attic inscription — the Senate's dedication to Constantine.
  • Hadrianic roundels — eight circular reliefs of hunting and sacrifice.
  • Marcus Aurelius panels — eight rectangular reliefs at the top.
  • Dacian statues — eight figures on the attic columns, from Trajan's Forum.
  • 4th-century frieze — the narrow band above the side bays, made for Constantine.
  • The view through the arch — from the north the Colosseum frames itself in the central bay.

How to get to the Arch of Constantine

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Where are you starting from?

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On foot

More tips

  1. Metro line B to Colosseo — 2 minutes' walk.
  2. It stands between the Colosseum and the Palatine entrance on Via di San Gregorio.
  3. Tram 3 and buses 51, 75, 85 and 87 stop around Piazza del Colosseo.
  4. The Via Sacra runs past it to the Roman Forum's Arch of Titus gate.

Is it worth seeing?

Yes — you'll be at the Colosseum anyway, it's free, and it's the best example of Rome recycling its own past. Walk all the way round: each side has different reliefs. If triumphal arches interest you, compare it with the Arches of Titus and Septimius Severus in the Roman Forum.

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Colosseum and the Golden House

The Domus Aurea with VR in the morning, then the Colosseum and the Arch of Constantine next door.

  1. Domus Aurea1 h 15 min · ≈ €18, with VR ≈ €26
  2. 5 min walk from the previous stopColosseum2 h · ≈ €18
  3. 3 min walk from the previous stopArch of Constantineyou are here15 min · Free

3 places · about 3 h 38 min with walks · 8 min on foot in total

Go · my route

Nearby and on the way

Colosseum

Rome, Italy

2 h · ≈ €18 · 3 min walk

Palatine Hill

Rome, Italy

1 h 30 min · ≈ €18 with Colosseum · 6 min walk

Domus Aurea

Rome, Italy

1 h 15 min · ≈ €18, with VR ≈ €26 · 7 min walk

San Pietro in Vincoli

Rome, Italy

20 min · Free · 9 min walk

How to do it right

  • Free to see — walk all the way round.
  • Best shot: the Colosseum behind the arch.
  • Floodlit after dark.
  • Hadrian's roundels sit above the side bays.

Questions

When was the Arch of Constantine built?

In AD 315, for Constantine's tenth year as emperor.

Where is the Arch of Constantine?

Beside the Colosseum, between it and the Palatine; Colosseo metro.

Can you walk through the Arch of Constantine?

No, it's fenced off; you view it from outside for free.

How tall is the Arch of Constantine?

About 21 m high and 25.9 m wide.

Why does it show other emperors' reliefs?

They were taken from monuments of Trajan, Hadrian and Marcus Aurelius and recut as Constantine.

How long do you need?

10–15 minutes.

Have you been? Was it worth your time?

1 — no, 5 — absolutely

Your vote counts towards the YesGo score.

Sources and fact-check

  • English Wikipedia, Arch of Constantine

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