This site is creating using Travlrmap version 1.5.1. It's a simple tool designed to be self-hosted or on a PaaS like Heroku. All the configuration and points are maintained in static YAML files.
It's a standalone system, has no social features and is more aimed a city level tracker for places you have been rather than a coffee shop level check-in system, though a mobile app is planned to assist in logging visits while on the move.
Various 3rd party libraries were used in creating this software:
This system supports map tyles from various 3rd parties, copyright and attributions for those can be seen below.