Kirkilai湖泊和瞭望塔，比尔扎伊地区公园，立陶宛 Kirkilai lakes and lookout tower, Biržai Regional Park, Lithuania (© MNStudio/Shutterstock)

Kirkilai湖泊和瞭望塔，比尔扎伊地区公园，立陶宛 Kirkilai lakes and lookout tower, Biržai Regional Park, Lithuania (© MNStudio/Shutterstock)

瞭望塔上，一睹奇景！ Lookout above!

Kirkilai湖泊，比尔扎伊地区公园，立陶宛

Kirkilai瞭望塔坐落于立陶宛比尔扎伊地区公园内，高约115英尺，是现代建筑魅力和创意结合的典范。站在瞭望塔上，你可以一览Kirkilai喀斯特湖的美景。Kirkilai喀斯特湖是由可溶性岩石（如石膏和石灰岩）溶解而成的自然奇观。随着时间的推移，这些岩石中的洞穴逐渐被溶蚀、坍塌，形成清澈透亮的洼地积水，最终造就了独特迷人的喀斯特风光。互相连通的湖泊与周围郁郁葱葱的植被相映成趣，为自然爱好者打造了一个绝美的天堂。

Kirkilai lakes, Biržai Regional Park, Lithuania

Curving above the treetops of Biržai Regional Park in northern Lithuania, this unusual structure allows a bird's-eye view of a unique landscape. Built in 2015, the Kirkilai Observation Tower's shape is said to resemble a sinking boat, appropriate in an area dotted with water-filled sinkholes. About 30 of these small lakes can be seen from the top of the tower, nearly 100 feet in the air. These lakes can be up to 36 feet deep and are just some of the thousands of sinkholes identified in the park. Water-soluble rocks like gypsum lie under the soil in this area, and over time they gradually erode, forming caves, which then collapse. In some cases, they fill with water, creating this mesmerizing landscape. The interconnected lakes mirror the surrounding greenery, creating a scenic haven for nature enthusiasts.