When was Cluj-Napoca first mentioned in writing?
1213
The oldest surviving written mention of Cluj-Napoca dates from 1213, 813 years ago.
Older than 99% of the 5,588 localities with a firm first mention.
The sources do not fully agree; this is the date the project picks, with the other readings at the source.
Source: Wikidata (CC0), Suciu (1967–68), Documenta Romaniae Historica, Wikipedia; the date is the one the project picks
Where was Cluj-Napoca 100 million years ago?
26°–32° N
In the Cretaceous, when dinosaurs still walked the Earth, the ground under Cluj-Napoca lay at 26°–32° north, depending on the plate-tectonic model (the project compares three). Today it is at 46.8° N. It has moved 1,917–2,302 km since.
The latitude band then; today at 46.8° N.
Source: Plate models Müller 2019, Merdith 2021 and PALEOMAP; GeoNames localities (CC BY 4.0)
3Mountains on the horizon
Which mountains can you see from Cluj-Napoca?
2,100 m
The highest summit in view from Cluj-Napoca is Pietrosul Călimani, 2,100 m high and 126 km away. In all, 6 summits above 1,000 m are in view, 2 of them above 2,000 m.
Against Moldoveanu, Romania's highest summit (2,544 m).
The calculation takes the terrain, the curvature of the Earth and the bending of light into account, out to 450 km, from 30 m above the ground (the roof of a ten-storey block).
Source: Terrain from Mapzen/AWS Terrain Tiles, summits from OpenStreetMap; the calculation is the project's
How far is the sea from Cluj-Napoca?
477 km
The sea is 477 km away in a straight line. Space begins 100 km straight up (the Kármán line), so from Cluj-Napoca space is nearer than the sea.
89% of Romanians live within 477 km of the sea.
The distance starts from a point inside the commune or town.
Source: Natural Earth (public domain), GHSL 2025 population (JRC, CC BY 4.0)
Where do you come out if you dig a tunnel through the Earth from Cluj-Napoca?
1,557 km
Dig a straight tunnel through the centre of the Earth from Cluj-Napoca and after about 12,740 km you come out in the South Pacific Ocean, at 46.8° S, 156.4° W. The nearest land from there is 1,557 km away: the Chatham Islands (New Zealand).
The tunnel passes through no other town: below you there is only rock, then the Earth's core.
Source: Natural Earth (public domain); ellipsoid geometry as in the project
What is the earthquake design value of Cluj-Napoca in the new code?
0.12 g
Romania's new seismic design code (RTC 18-2026, in force from 11 October 2026) gives Cluj-Napoca a peak ground acceleration of ag = 0.12 g, that is 12% of the acceleration of free fall. The value is exceeded on average once every 475 years.
87% of Romanians live in localities with a higher value and 2% in localities with the same value.
Source: MDLPA Order 1,037/2026, RTC 18-2026, Annex A, Table A.1 (Official Gazette 771 bis, 11 Sep 2026)
7Castles and manor houses
What is the nearest castle or manor house to Cluj-Napoca?
7.4 km
The nearest noble residence on Romania's List of Historic Monuments is Conacul Bornemisza - Matskassy, in Popești, 7.4 km away (1804). Within 25 km there are 15 residences; within 50 km there are 47 residences.
A conac is the manor house of a boyar or noble, a castle is fortified; a culă is an Oltenian tower house.
Source: List of Historic Monuments (National Heritage Institute), processed by the Castele project
What is the nearest hospital to Cluj-Napoca?
5,392 beds
Cluj-Napoca has a hospital with inpatient beds: 5,392 beds in 2024, public and private.
A straight line is not the road.
Source: INS: hospital beds (SAN102C, 2024) and population (POP107D, 2023); the calculation is the project's
What is the nearest airport to Cluj-Napoca?
5.8 km
The nearest of the 17 airports with passenger traffic is Avram Iancu (Cluj-Napoca), 5.8 km away in a straight line. 3,582,134 passengers passed through it in 2025, 2nd among the country's airports.
5% of Romanians live closer to an airport.
Passengers are counted on landing and on take-off.
Source: Romanian Airports Association (2025 statistics), OurAirports (public domain); INS 2021 census population