Piatra Altarului Cave, considered to be one of the most beautiful caves in Europe, protected area in Apuseni Mountains, Romania

#rumanien, #stalagmites, #Stalactites, #beautiful, #underground

by dcis_steve on Flickr.Arenal Volcano as seen from the grounds of Hotel Nayara, just outside La Fortuna, Costa Rica.

#travel, #Tourism, #landschaft, #Central America, #volcano

Tree Library, Berlin, Germany

#Tree Library, #Berlin, #Germany

Tree Tunnel, Meath, Ireland

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Porcupine Mountains Wilderness State Park, Michigan.

#Porcupine Mountains Wilderness State Park, #Michigan.

Fojnica, Bosnia and Herzegovina Amila Omerika

#travel, #Bosnia and Herzegovina, #europe, #nature

Take A Dip In The Clouds Lauren Thibodeau

#travel, #forest, #landscape, #nature