New York 1901 is a game about claiming real estate lots, building skyscrapers, and then demolishing them to build bigger and more valuable structures for VPs.
On your turn, you either acquire/build or demolish/rebuild. To acquire a lot, choose a card from the display (there is one for every lot on the board) and claim it with one of your four workers, then you may optionally build by placing one of your buildings on the lot to earn VPs. If you build on the lot, you get your worker back for later turns.
To demolish, remove a building from one or more lots you own, and replace them with a larger building for more VPs. Crucially though, the buildings you have demolished are removed from the game.
And this is where I think the game hides some tricky decisions. You can choose to build your small buildings early in the game for a few VPs, then demolish them to build larger buildings, or you can keep them for later in the game when you might need a few extra points.
We enjoyed the game. It seemed very light at the start but became quite difficult in the later game when the board was full. The randomness of the cards adds a bit of luck, but generally this can be mitigated.