Free to visit, lots of people, the line to get in looked long but it went fast. Beautiful basilica,…read morenice view, I heard this was a great place to watch the sunset. You can take a taxi & get dropped off at the top, right at the entrance. If you take the metro, you'll have to walk up 222 steps or pay a few euros to take the Montmartre Funicular up, a 2 min ride. We spent about 30min there.