The current series, “The World’s Greatest Geological Wonders: 36 Spectacular Sites”, is perfect for anyone planning their next vacation or exploring the world from their chair. For example, consider these lesser-known but awe-inspiring places:
- Ha Long Bay: Thousands of limestone towers soar upward out of this bay of mystery and beauty in Vietnam. The formation is what geologists call a karst landscape, sculpted from the slow dissolution of soluble rock by rain and groundwater.
- Columbia Glacier: One of the most intensively studied glaciers in the world, this magnificent river of ice twists its way for 50 kilometers from Alaska’s coastal range into the sea. Such glaciers advance and retreat for unknown reasons.
- Erta Ale: In rare cases, lava from a volcano will continuously feed into the volcanic crater and bubble away like a seething caldron. Of the five active lava lakes in the world, the longest running is in a volcano called Erta Ale in Ethiopia.
- Great Blue Hole: What could cause a nearly perfect circle of intensely deep blue water in the middle of a shallow reef? The Caribbean’s Great Blue Hole tells a surprising story of repeated glaciations and rising and falling seas.
Middleton Glen residents will surely “fire up their imagination” at the next The Great Courses showing! To view our current Resident Activity Calendar, please click here.