Not only a beautiful museum; the exhibit that incorporates real-time aurora and tectonic plate feedback was sooo cool.
Definitely a bit touristy but a SOLID hot springs resort with tons of interesting geothermal research/applications and great hiking nearby.
An absolute favorite of mine - a solid research facility with beautiful animals from the region. Look for bald eagles on the treetops and utility poles around the facility!
Take in a view of downtown Anchorage and the nearby mountains from the rooftop bar at the Cook.
