Each year, the early weeks of fall bring a natural phenomenon to the Capital Plaza shopping center in Austin, Texas. Shoppers, employees, passersby, young families, and avid birdwatchers alike all gather to marvel at the communal roosting of tens of thousands of Purple Martins as they journey along their migratory path to Brazil.

Incarcerated participants in a mental health experiment watch videos of sunset-soaked beaches, wildflowers, and forests on loop, prompting them to reflect on isolation and the wilderness.

As a mountainous village in Greece sinks under the lake, the memories of its inhabitants emerge from the water.

An unconventional and visually stunning study of the polar bears who draw tourists to Churchill, Manitoba.

Three women forge a friendship by swimming through the winter in Lake Michigan as a way to cope with the pandemic.