Citymapper

Visit London - Official Guide

Travel

Tube Map - London Underground

TfL city map live planner

TfL Go: Plan, Pay, Travel

TfL's official transport app

Bus Times London Countdown App

Live TfL Buses & stop checker

Paris Metro Map and Routes

Metro map and route planner

London & UK Live Bus Countdown

Bus, Tube Map & TfL Times & UK

Bonjour RATP

Subway, RER, Trains, Navigo

Eurostar: Train travel & Hotel

Train booking to travel Europe

Palace of Versailles

Audioguide tour and Map

Île-de-France Mobilités

Official IDF Transport App