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Caisteal Moal, c. 1490, ancient seat of MacKinnon Clan, Isle of Skye

F*R*I*E*N*D*S will be there for you -- An Etsy treasury of gifts for the FRIENDS fan in your life!

50 Places to visit before you die [2], Quinta da Regaleira, Sintra, Portugal

Cave hot tub - Santorini, Greece

AWESOME...The Rumble Room, a limestone cavern underneath Tennessee’s Dry Fork Creek, is one of the country’s biggest caves.

Entrance to the underground caves of Jiuxiang Diehong Bridge Scenic Area, Kunming, China

Fingal’s Cave is a sea cave on the uninhabited island of Staff, one of the Inner Hebrides islands which skirt the western coast of Scotland. The immense arch-roofed cave creates a melodic, haunting echo of waves within its cathedral-like atmosphere; something so impressive Romantic Poets John Keats, William Wordsworth, and Alfred, Lord Tennyson all made journeys here; as well as Her Majestic Queen Victoria. The cave’s Gaelic name is Uamh-Binn, meaning “cave of melody.”

New Wonderful Photos: The boulder , Zion National Park, Utah

Devetashka cave, Bulgaria by Silvia S.

Cenote in the Yucatan Peninsula / Unknown

Homestead Resort in Utah /

Mammoth cave in Vietnam / Carsten Peter {if anyone knows the original source for this please share it! thanks -- update thanks for finding the original source guys!} #travel

Illuminated Cave, Okinawa, Japan

Meanwhile, somewhere in Portugal....