Footpath - Plan exact travel routes with the trace of your finger 🗺️
Apache Lucene - High-performance, full-featured text search engine library written entirely in Java.
Sygic Travel Maps - Itinerary planner for independent travelers
Six Degrees of Wikipedia - Find the shortest path between two subjects
80days.me 1.0 Travel - A website that plans multi-destination trips in a few clicks
Sphinx Search - Sphinx is an open source full text search server, designed with performance, relevance (search quality), and integration simplicity in mind. Sphinx lets you either batch index and search data stored in files, an SQL database, NoSQL storage.