Round Tower
E67494
Round Tower is a historic 17th-century astronomical observatory and iconic cylindrical tower in central Copenhagen, known for its spiral ramp and panoramic city views.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Round Tower canonical | 5 |
| Round Tower observation platform | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T539918 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Round Tower Context triple: [Copenhagen, hasLandmark, Round Tower]
-
A.
Victoria Tower
Victoria Tower is a prominent square stone tower at the southwest end of the Palace of Westminster in London, historically used to store the parliamentary archives and forming part of the iconic UK parliamentary skyline.
-
B.
Smeaton's Tower
Smeaton's Tower is a historic 18th-century lighthouse, now a prominent monument and visitor attraction overlooking the sea on Plymouth Hoe in Plymouth, England.
-
C.
Ayer Mill Clock Tower
The Ayer Mill Clock Tower is a historic mill clock tower in Lawrence, Massachusetts, known for its large clock faces and as a prominent symbol of the city’s industrial past.
-
D.
Elizabeth Tower
Elizabeth Tower is the iconic clock tower in London that houses the Great Bell commonly known as Big Ben, forming one of the most recognizable landmarks of the Palace of Westminster.
-
E.
City Hall, London
City Hall, London is a distinctive glass-fronted building on the south bank of the River Thames that served as the home of the Mayor of London and the London Assembly.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Round Tower Target entity description: Round Tower is a historic 17th-century astronomical observatory and iconic cylindrical tower in central Copenhagen, known for its spiral ramp and panoramic city views.
-
A.
Victoria Tower
Victoria Tower is a prominent square stone tower at the southwest end of the Palace of Westminster in London, historically used to store the parliamentary archives and forming part of the iconic UK parliamentary skyline.
-
B.
Smeaton's Tower
Smeaton's Tower is a historic 18th-century lighthouse, now a prominent monument and visitor attraction overlooking the sea on Plymouth Hoe in Plymouth, England.
-
C.
Ayer Mill Clock Tower
The Ayer Mill Clock Tower is a historic mill clock tower in Lawrence, Massachusetts, known for its large clock faces and as a prominent symbol of the city’s industrial past.
-
D.
Elizabeth Tower
Elizabeth Tower is the iconic clock tower in London that houses the Great Bell commonly known as Big Ben, forming one of the most recognizable landmarks of the Palace of Westminster.
-
E.
City Hall, London
City Hall, London is a distinctive glass-fronted building on the south bank of the River Thames that served as the home of the Mayor of London and the London Assembly.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory
ⓘ
building in Copenhagen ⓘ historic tower ⓘ landmark ⓘ tourist attraction ⓘ |
| architecturalStyle |
Baroque
ⓘ
surface form:
Baroque architecture
|
| commissionedBy | Christian IV of Denmark ⓘ |
| completionDate | 1642 ⓘ |
| connectedTo | Trinitatis Church ⓘ |
| constructionType | masonry tower ⓘ |
| country | Denmark ⓘ |
| culturalSignificance | symbol of Copenhagen ⓘ |
| designedFor | astronomy ⓘ |
| era | 17th century ⓘ |
| hasAccess | spiral ramp instead of stairs ⓘ |
| hasEntrance | Købmagergade ⓘ |
| hasFeature | panoramic city views ⓘ |
| hasObservationFacility | telescope ⓘ |
| hasPart |
chapel below the tower
ⓘ
library hall ⓘ observatory platform ⓘ spiral ramp ⓘ |
| hasSpiralRampLength | about 210 meters ⓘ |
| hasSpiralRampWidth | wide enough for horse-drawn carriages ⓘ |
| hasUse |
astronomical observations
ⓘ
public observation deck ⓘ tourism ⓘ |
| height | about 36 meters ⓘ |
| heritageDesignation | listed building in Denmark ⓘ |
| locatedIn |
Frederiksstaden district
ⓘ
surface form:
Indre By
central Copenhagen ⓘ |
| location | Copenhagen ⓘ |
| material | brick ⓘ |
| namedAfter | its round cylindrical shape ⓘ |
| numberOfFloors | 7 ⓘ |
| openToPublic | yes ⓘ |
| operator |
Copenhagen
ⓘ
surface form:
City of Copenhagen
|
| partOf | Trinitatis Complex ⓘ |
| shape | cylindrical tower ⓘ |
| startDate | 1637 ⓘ |
| touristAttractionStatus | major Copenhagen attraction ⓘ |
| usedFor |
cultural events
ⓘ
exhibitions ⓘ scientific research in the 17th century ⓘ |
| viewOverlooks |
Copenhagen
ⓘ
surface form:
Copenhagen city center
Copenhagen rooftops ⓘ Rosenborg Castle ⓘ
surface form:
Rosenborg Castle area
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Round Tower Description of subject: Round Tower is a historic 17th-century astronomical observatory and iconic cylindrical tower in central Copenhagen, known for its spiral ramp and panoramic city views.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Round Tower observation platform