You can get nice things in cityscape

Try fooling around with HDR, panoramas can get quite cool too do, if you've seen my gallery, you'll see some there both HDR and panoramic.
No car? That is no problem, I bet you have trains and other methods of transportation into other cool places to shoot.
Also, you might find cool to have a few ND filters

They are great to do dramatic, no people on the street photos and feathering water in beaches or waterfalls, even if small, great pictures come out of just testing things out.
You have no idea how much things are cheap now, compared to the 35mm film era.. geeez