Data method
How the Castle Atlas Discovery Index Is Built
What source-identified means, what the 26,802-site count includes, and what the index does not claim.
Method and verificationTHE FIELD DESK
Castle research and route guides.
Country and region pages designed around source identity, explicit limits, current-info checklists, and useful comparison—not thin location combinations.
Classification guide
Castle, Fort, Fortress, or Citadel?
A source-aware field guide to the four discovery classes used by Castle Atlas.
Method and verificationPlanning method
A Source-First Castle Trip Planning Template
Plan a research route without relying on stale hours, invented coverage, or unsourced listicles.
Method and verificationRegional route
Great Britain Castle Research Route: Three Nations, Three Contexts
Use Edinburgh Castle, Caernarfon Castle, and the Tower of London to compare source types and urban settings.
3 source-identified examplesCountry guide
Ireland Castle Research Guide: Blarney as a Source Case Study
Use Blarney Castle to separate documented site history, cultural tradition, and current visitor details.
1 source-identified exampleRegional route
Iberian Fortified Heritage Research Route
Compare the Alhambra and Belém Tower without flattening palace, tower, and defense histories.
2 source-identified examplesRegional route
Alpine Castle Research Route: Bavaria and Salzburg
Compare Neuschwanstein Castle and Hohensalzburg Fortress through landscape, type, and operator sources.
2 source-identified examplesRegional route
Central Europe Castle Research Route
A source-led comparison of Prague Castle, Malbork Castle, and Spiš Castle.
3 source-identified examplesRegional route
Baltic and Finland Fortified Heritage Research Route
Compare Trakai Island Castle and Suomenlinna through island setting, type, and source context.
2 source-identified examplesRegional route
Scandinavian Fortress Research Route
Use Akershus and Bohus to compare capital-city and borderland fortress contexts.
2 source-identified examplesRegional route
Romania and Slovakia Castle Research Route
Compare Bran Castle and Spiš Castle while preserving disputed chronology and condition.
2 source-identified examplesRegional route
Eastern Mediterranean Fortifications Research Route
Compare the Acropolis of Athens and Rumeli Hisarı through citadel and fortress source classes.
2 source-identified examplesDesktop route
Levant Fortified History: A Desktop Research Route
Study Ajlun Castle, Krak des Chevaliers, and the Citadel of Aleppo without presenting unsafe or stale travel advice.
3 source-identified examplesCountry route
Japan Castle Research Route: Himeji and Matsumoto
Compare two source-identified Japanese castles while researching names, condition, and current operators.
2 source-identified examplesCountry route
India Fortified Heritage Research Route: Delhi and Jodhpur
Compare Red Fort and Mehrangarh Fort through classification, naming, and evidence layers.
2 source-identified examplesCity guide
Mexico City Fortified Heritage Guide: Chapultepec Castle
Use Chapultepec Castle to research the fortified-palace class without forcing a single inception date.
1 source-identified exampleRegional route
Caribbean Fortress Research Route
Compare San Juan and Santiago de Cuba through two source-identified coastal fortresses.
2 source-identified examplesRegional guide
Florida Coastal Fortress Research Guide
Use Castillo de San Marcos as a compact source, setting, and access-verification exercise.
1 source-identified exampleCountry guide
Ghana Fortified Heritage Research: Elmina Castle
A source-first framework for researching Elmina without compressing complex history into travel copy.
1 source-identified exampleCountry guide
Kenya Fortified Heritage Research: Fort Jesus
Use Fort Jesus Museum to connect source identity, museum context, and current visitor verification.
1 source-identified exampleCity guide
Algiers Citadel Research Guide
Use the Casbah of Algiers to study citadel classification, complex boundaries, and source scope.
1 source-identified exampleResearch method
Castle History Source Checklist
A practical hierarchy for identity, chronology, designation, media, and visitor information.
Method and verificationPlanning method
Castle Road-Trip Verification Checklist
What to recheck before travel when an atlas page intentionally avoids live operational promises.
Method and verificationAccessibility guide
Accessible Castle Map Research
Use list alternatives, clear source labels, and verified access details instead of map-only discovery.
Method and verificationOffline guide
Offline Castle Research Workflow
Prepare source ledgers, selected media attribution, and bounded map context before connectivity drops.
Method and verification