http://www.esbnyc.com
2. Sears Tower
http://www.sears-tower.com
3. Transamerica Pyramid
http://www.tapyramid.com
4. NationsBank Plaza
http://www.nationsbankplaza.com
5. John Hancock Center
http://www.hancock-observatory.com
6. One Atlantic Center
http://www.oneatlanticcenter.com
7. Transamerica Center
http://www.tacenter.com
8. Lincoln Building
http://www.60east42st.com
9. 199 Fremont
http://www.199fremont.com
10. NY Information Technology Center
http://www.55broadst.com