Because of Open House New York this weekend, Look Up won't be featuring just one single place; insteady, here are five sites to add to your must-see list of great New York architecture. Some previous look ups have also made their list so these have been removed from this selection, but check these out as well: Grand CentralCASA Hotel, and the Standard Hotel.

Unfortunately, as these events have gotten quite popular in past years there is now a $5 surcharge for some of these and you need to register in advance, but hopefully this will keep the lines down so you can actually enjoy the sites.

Here are the 5 must-see places of this weekend's Open House New York.