Wherefold — Interactive US Travel Guide

A structured travel-attraction database of my own construction — 5,110 attractions across 1,274 US cities and 36 national parks, each curated across 20+ fields (coordinates, category, opening hours, pricing tier, contact info, bilingual descriptions, suggested visit duration, best time to visit, transportation, photo tips) — surfaced through an interactive bilingual (English/Chinese) data-visualization platform I designed and built end to end. The database was assembled through a scraping-plus-curation pipeline against Google Places and Wikipedia, with every field reviewed and normalized before publication; the platform layer turns that dataset into a single explorable Mapbox map with filtering, full-text search, and a community feedback loop (tips, ratings, and error reports) that keeps the data current after launch. Full stack: React/TypeScript frontend rendering the dataset as a Mapbox GeoJSON layer, an Express/Prisma API over PostgreSQL, deployed on Vercel and Railway.