The campus of Aalto University (former Helsinki University of Technology) was designed by Alvar Aalto in organic modernist style, and includes the Dipoli congress center designed by Reima and Raili Pietilä in an eccentric style (lacking in right angles). Most buildings of interest are located either on the main street, Otaniementie, or on Otakaari, a loop road going from Otaniementie via Dipoli to the dorm village (Teekkarikylä) and back. The Laajalahti nature protected area, a good birdwatching site, is accessed from Otaniemi.