The other place I got to visit when I was in Kathmandu was the Garden of Dreams. For 200 rupees (about SGD3), you can escape the noise and crowd of Thamel for an hour or two and just chill at this historical garden. The Garden of Dreams was created in the early 1920s. Around the garden, one will find pavilions, fountains, and other decorative garden furniture. It could use a little bit more of maintenance (and I think the group behind is doing so). Still, it was a nice escape.