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Hisarya Fortress

Plizio editorial teamUpdated: Jun 2026Data Sources

Historical site

Weather…

The Hisarya Fortress, located in ancient Diocletianopolis, is one of the best-preserved Roman defensive structures in Bulgaria. The city was founded in the late 3rd century AD by Roman Emperor Diocletian, who valued the strategic location and healing thermal springs. The fortress wall encloses an area of about 30 hectares and extends for a total length of 2,327 meters, reaching heights of 11 meters in some sections. Particularly famous is the South Gate, known as 'The Camels,' which stands as an outstanding example of Roman engineering. Within the walls lie remains of monumental public buildings, thermal baths, amphitheaters, and early Christian basilicas. Hisarya was a significant administrative and spa center of the Roman Empire in the province of Thrace during late antiquity. Archaeological finds confirm continuous settlement for millennia due to the mineral-rich water sources. Today, the fortress is part of an archaeological reserve and forms the heart of the modern spa town of Hisarya. Visitors can tour the imposing walls and admire valuable artifacts in the nearby museum.

Location: Bulgaria, Bulgaria
Top sights: Eastern fortress gate · Open-air theatre · Part of the Roman wall
Nearby: Rakovski (32 km)

Best time to visit & climate

The most pleasant time to visit is Jun–Aug.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	-2	0	5	10	15	19	22	22	17	11	6	0
Rain mm	52	46	56	54	86	89	77	54	55	54	39	53

📋 Practical info

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Visiting

Hisarya Fortress is a freely accessible archaeological site outdoors. The remains of the Roman walls can be visited at any time free of charge.

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Typical hours

As an open ruin, there are no opening hours. The nearby museum typically has seasonal hours.

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Photography

Photography is allowed throughout the site. Shots of the thermal springs in the area are also appealing.

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Time needed

A walk around the ruins takes about 30 to 45 minutes. Including a visit to the Archaeological Museum, allow about two hours in total.

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Combine with

Combine your visit with a dip in the nearby thermal springs of Hisarya. The Roman mosaic in the town center is also worth seeing.

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Getting there

The fortress is located in the city park of Hisarya and is about a 10-minute walk from the town center. Parking is available nearby.

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Insider tip

Bring swimwear to use the free public thermal pools in town. The ruin is especially atmospheric at sunset.

Geography

Coordinates

42.50380, 24.70880

Facts

Founded: Late 3rd century by Diocletian
Wall length: 2,327 meters
Number of towers: originally 44
South Gate name: The Camels
Healing springs: 22 mineral springs
Status: Archaeological reserve

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Kalofer26 km · NEExplore →

Hristo Botev Monument28 km · NEExplore →

Route planner — Car & Motorhome

Where do you start? We build the route here, with stops and country notes along the way.

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Overnight stops

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Only stops with (optional): 💧 Water ♻️ Disposal 🔌 Power 🚻 Toilets 🚿 Shower

Sights in the town Hisarya Fortress (4)

Eastern fortress gate

Eastern gate of the fortress wall in Hisarya.

Open-air theatre

Open-air theatre in Hisarya, Bulgaria, used for performances.

Part of the Roman wall

Section of the Roman fortification wall in Hisarya.

Archeological museum🏛 museum

Archaeological museum in Hisarya with finds from the area.

Sights nearby

Frequently asked questions

What is special about Hisarya Fortress?

It has one of the best-preserved Roman city walls in Europe.

How long is the city wall?

The wall is approximately 2.3 kilometers long.

Is there a famous city gate?

Yes, the south gate, known as 'The Camels'.

Was Hisarya a spa resort?

Yes, even the Romans used the town's 22 mineral springs.

Can you visit Roman tombs?

Yes, there is a well-preserved Roman family tomb with mosaics.

Hisarya Fortress: where is it located?

Hisarya Fortress is located in Bulgaria, Bulgaria.

Hisarya Fortress: what is there to see?

Highlights include Eastern fortress gate, Open-air theatre, Part of the Roman wall.

Hisarya Fortress: when is the best time to visit?

The most pleasant time to visit is Jun, Aug.

Hisarya Fortress: why is it worth visiting?

The Hisarya Fortress, located in ancient Diocletianopolis, is one of the best-preserved Roman defensive structures in Bulgaria.

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