Basilique du Sacre-Coeur de Montmartre, Paris

The best religious or spiritual experience, in the most beautiful place of worship, I have ever had. Everyone visiting Paris should visit this church, even if you're not a Christian. You won't regret it. Highest point in Paris with stunning views of the city. A good hike to get up the stairs but there is a tractor train thing I noticed, however I do not know from where you catch it. Stunning experience at sunset on a full moon.

Beautiful historic church, with stunning views all across the city. You can see nearly all major landmarks from different viewpoints. There are many steps to get up to the top. However there's also an outdoor lift type service for the cost of 1 general €1.60 travel ticket. We also saw a tourist train snaking up and around the streets to the top. Once you're there it's very busy & very touristy. Many people sat on the steps at sunset, which is one of the most beautiful times of day. However, if you can I'd highly recommend going either for sunrise or much earlier in the day. There are many sellers with different wares. One was selling some incredibly tasty, fresh & warm sugared almonds. There's also some more touristic bars at the top. If you adventure round the back and down, you'll start to get to a less busy area. I'd highly recommend going no matter what, purely for the views of the city & the architecture of the church!