Top activities in Austin
Top Austin landmarks
Top Austin landmarks tickets
Top Austin categories
Explore Austin and beyond
Nearby Austin tours
Popular tours in USA
People also visited
Trip Inspiration
Things to do in …
Top Austin articles
Austin’s Congress Avenue Bridge is home to roughly 1.5 million Mexican free-tailed bats—the world’s largest urban bat colony. Spectators gather here on summer nights, cameras in hand, to watch these flying mammals emerge from beneath the bridge to hunt in the sky above Lady Bird Lake.