with curved lines and overhangs. Do you suppose it is meant to remind one of a pueblo?
There is an interesting fountain area that flows into this hole.

Inside is a wide variety of old and new material.

I got fascinated by the beadwork

These cradleboards are Comanche (1890), Arapaho (1890) and Flathead (1880)
Yakama two-hide dress (1890)

Sioux two-hide pattern dress with fully beaded yoke.  (1890)

Nez Perce two-hide pattern dress with fully beaded yoke (1920)

Crow leggings (1890) and moccasins (1890)

We were most impressed with this modern (2002) beaded flag.


Check out the detail.  
Instead of stars, there is the postal abbreviation of the state in white.  
The two numerals before and the two after the abbreviation are the date the state entered the union.
There is a dark blue bead background with light blue quotes of significance to the artist.

The white stripes clearly show an alphabetical list of tribes.

I am still trying to find info about the artist, Jenny "Chapoose" Taylor.
There is a fascinating article about this piece in the Eugene, Oregon,  Register Guard
(I have also copied it from the Register Guard.)
This piece, entitled "Nation"  was not accepted into the Eugene Mayor's art show!
Later it was discovered and recommended to the Smithsonian where it is beautifully displayed.