City Park Lake and get up closed to the Vajdahunyad Castle.
Besides photography, you can have a little picnic by the City Park Lake. There is a photo exhibition about the reconstruction of this castle area as well as 'Art on the Lake' exhibits of three dimensional art pieces.
After the sunset, you can chill on those colourful bean bags that are intentionally placed at a strategic spot where it overlooks the lake. There are some nice music too :)