Seven Sisters Falls as seen from ferry, Geiranger Fjord, Norway, Europe

Seven Sisters Falls, Geiranger Fjord, western fjordlands, Norway, Scandinavia, Europe

Sedem Rilski Ezera (Seven Rila Lakes) hiking area, Bulgaria, Europe

Purmamarca and the Hill of Seven Colours (Cerro de los Siete Colores), Quebrada de Purmamarca, Jujuy Province, North Argentina, South America

Elevated view of the town and the Hill of Seven Colours (Cerro de los Siete Colores), Purmamarca, Jujuy Province, Argentina, South America

Elevated view of the town and the Hill of Seven Colours (Cerro de los Siete Colores), Purmamarca, Jujuy Province, Argentina, South America

Street scene in Purmamarca with the Mountain of Seven Colors in the background, Purmamarca, Quebrada de Humahuaca, UNESCO World Heritage Site, Jujuy Province, Argentina, South America

Street scene in Purmamarca with the Mountain of Seven Colors in the background, Purmamarca, Quebrada de Humahuaca, UNESCO World Heritage Site, Jujuy Province, Argentina, South America

Elevated view of the town and the Hill of Seven Colours (Cerro de los Siete Colores), Purmamarca, Jujuy Province, Argentina, South America

Sedem Rilski Ezera (Seven Rila Lakes) hiking area, Bulgaria, Europe

Mountain chain known as Seven Sisters, south of Rorvik on the west coast, Alsten, Norway, Scandinavia, Europe

Seven Sisters Waterfall, named for the seven separate streams that comprise it, Geirangerfjord, UNESCO World Heritage Site, Norway, Scandinavia, Europe

Espejo Lake (Lago Espejo), part of Seven Lakes route, Bariloche (San Carlos de Bariloche), Rio Negro Province, Patagonia, Argentina, South America

The Suitor Waterfall lies directly opposite the Seven Sisters Waterfall, Geirangerfjord, UNESCO World Heritage Site, Norway, Scandinavia, Europe

Seven Sisters Waterfall, named for the seven separate streams that comprise it, Geirangerfjord, UNESCO World Heritage Site, Norway, Scandinavia, Europe

The village of Purmamarca, at the base of Seven Colors Hill, Jujuy province of northwest Argentina, South America

The village of Purmamarca, at the base of Seven Colors Hill, Jujuy province of northwest Argentina, South America

The village of Purmamarca, at the base of Seven Colors Hill, Jujuy province of northwest Argentina, South America

Cascada Vullignanco along the Seven Lakes Drive, San Martin de los Andes, Nahuel Huapi National Park, The Lake District, Argentina, South America

Ruins Of The Temple Of Trajan, Pergamum, Turkey

Ruins Of The Theater In Pergamum, With Such Good Acoustics That A Whisper Onstage Could Be Heard All The Way To The Top Row, Pergamum, Turkey