This Spectacular Ice City Exists For Just Two Months Every Year, Why It's A Hit With Tourists

In sub-zero Harbin, a frozen river turns into a glowing city of ice each winter - only to vanish again with the first signs of spring.
The Cheat Sheet

Here’s How ‘Vikings: Valhalla’ Created a Frozen River in the Middle of Summer

'Vikings: Valhalla' creator Jeb Stuart teased the theme of exploration for Season 2, but fans didn't expect to see a boat on a sled on a frozen river. “My Vikings are going to get on their boats and ...
Yahoo! Sports

Historic ice boat race returns to frozen New Jersey river after two decades

The brutal cold gripping the Northeast this winter set the stage for a rare and storied spectacle on the frozen Navesink River in Red Bank, New Jersey. After more than two decades, the Van Nostrand ...