Postcards/Credits

Sources, licenses, and credits

Mike’s photos, observations, ratings, and travel notes are the primary record. Outside data fills in context where it helps someone plan or understand a place.

How attribution works

City and country pages keep their research links in one collapsed, numbered reference list at the bottom. Changing or consequential details such as entry rules, water guidance, prices, hours, and transit restrictions get the clearest source. Personal observations and ordinary geographic facts are not footnoted sentence by sentence.

Pin pages retain canonical direct links when they help with a visit, such as an official website, current hours, or ticket pricing. Provider credits explain services used across the site; they do not replace field-level sources or the attribution required for licensed images and maps.

Personal work

Photographs, reviews, ratings, lists, firsthand observations, and practical judgments are Mike Lee’s unless a page says otherwise. Personal gallery photographs are not licensed for redistribution. Generated cover art is identified as illustration, not documentary photography.

Outside datasets still in use

Supabase stores Mike’s own atlas records. The outside datasets below supply specific layers around that record.

Live planning

Forecasts, climate, air quality, holidays, transit, and exchange rates.

Open-Meteo, NASA POWER, OpenAQ, Nager.Date, TransitLand, Exchange-rate feed.

Maps and geography

Interactive maps, airports, boundaries, elevations, and time zones.

OpenFreeMap, OpenMapTiles, OpenStreetMap, OurAirports, Natural Earth, Open-Elevation, IANA Time Zone Database.

Background and practicalities

Place context, heritage records, entry guidance, water, and electricity.

Wikipedia, Wikidata, UNESCO World Heritage Centre, Travel.State.gov, CDC Yellow Book, WHO drinking-water guidance, World Standards.

Images and symbols

Licensed civic symbols and the small number of explicitly retained public images.

Wikimedia Commons, FlagCDN / flag-icons, circle-flags.

Personal imports and list checks

Mike’s saved exports, outbound map links, and list-designation cross-checks.

Google Takeout, Google Maps, Atlas Obscura, Michelin Guide.

Provider registry

Wikipedia

Article summaries and contextual excerpts.

License: CC BY-SA 4.0. Terms / attribution guidance.

Wikimedia Commons

Licensed source images and civic symbols when they are explicitly retained.

Terms / attribution guidance. Each file carries its own author and license; use the image-level credit.

Wikidata

Structured geographic facts and linked identifiers.

License: CC0 1.0. Terms / attribution guidance.

NASA POWER

Monthly climate normals.

Terms / attribution guidance.

Open-Meteo

Weather forecasts and historical weather.

License: CC BY 4.0. Terms / attribution guidance.

Open-Elevation

Coordinate-based elevation backfills.

Terms / attribution guidance.

IANA Time Zone Database

Canonical timezone identifiers.

OpenAQ

Air-quality observations aggregated from monitoring providers.

Terms / attribution guidance. The original monitoring provider and its license are shown with each station when the API supplies them.

Nager.Date

Public-holiday dates.

License: MIT (software). Holiday facts originate with national authorities; no blanket public-domain claim is made.

CDC Yellow Book

Traveler-focused food and drinking-water safety guidance.

WHO drinking-water guidance

Public-health baseline for safe drinking water and sanitation.

World Standards

Country-by-country domestic plug, voltage, and frequency reference.

OpenStreetMap

Geographic data used by the interactive basemap.

License: ODbL 1.0.

OpenFreeMap

Hosted vector basemap style and tiles.

Terms / attribution guidance. Interactive maps visibly credit OpenFreeMap, OpenMapTiles, and OpenStreetMap.

OpenMapTiles

Vector-tile schema and map styling used by OpenFreeMap.

Terms / attribution guidance.

TransitLand

Transit operator and route-mode aggregation.

Terms / attribution guidance. Underlying GTFS feeds have operator-specific licenses; TransitLand’s terms page supplies the required source-feed attribution.

OurAirports

Airport reference data.

License: Public domain.

Natural Earth

Small-scale geographic reference data.

License: Public domain.

UNESCO World Heritage Centre

World Heritage identifiers and canonical site records.

Terms / attribution guidance.

Atlas Obscura

Personal Been Here history and canonical place links.

Terms / attribution guidance.

Michelin Guide

Restaurant designation cross-checks.

Terms / attribution guidance.

Google Maps

User-saved Takeout imports, retained Place IDs, and outbound map links.

Terms / attribution guidance. The atlas does not persist or display Places API ratings, price levels, hours, phone numbers, or descriptions.

Google Takeout

Mike’s own saved-list exports.

Terms / attribution guidance.

FlagCDN / flag-icons

Rectangular country flag assets.

License: MIT.

circle-flags

Circular country flag assets.

License: MIT.

Travel.State.gov

Entry, safety, emergency, and advisory context for U.S. travelers.

Exchange-rate feed

Currency conversion display and sorting snapshots.

License: CC0 1.0.

Google Maps boundary

Google Takeout supplies Mike’s own saved-list exports. The atlas may retain Google Place IDs and user-saved Google Maps links, and it links readers to Google Maps. It does not persist or display Places API ratings, rating counts, price levels, hours, phone numbers, or descriptions. See the site terms and privacy notice for the platform terms and browser-request disclosures.

Map attribution

Interactive maps load OpenFreeMap’s vector style. The visible, expanded map control credits OpenFreeMap, OpenMapTiles, and OpenStreetMap next to the map. Compact card backs use a local coordinate graticule and do not fetch third-party raster tiles.

Image attribution

Personal photographs lead city, country, guide, and pin pages. Photo-less city pages use a local coordinate graphic instead of automatically borrowing a Wikimedia image. Any explicitly retained Commons image carries its author, license, and canonical file link.

Selected transit postcard covers are stock photographs licensed from Envato Elements for this site. The project records retain the source item identifiers; the photographs are not offered for redistribution.