Pain Free Math

Rio de Janeiro view from Sugarloaf Mountain, Brazil

Victorian terrace houses in Flemington, Melbourne, Australia

The Cathedral Group - Rocky Mountains, part of Grand Teton National Park in the US state of Wyoming.

Medieval village of Moustiers-Sainte-Marie in Alpes-de-Haute-Provence, France

Blue Forest, Linkoping, Sweden

Evening on Spiegelrei, Bruges / Belgium

Jiuzhaigou, Sichuan, China Rob Lafreniere

The entrance to Belogradchik Fortress, Bulgaria

When this old world starts getting me down

by Rox More on Flickr.The beautiful town of Corricella - Procida Island, Italy.

Auxerre, France

Santorini, Greece

Lake Thun, Switzerland Jason Pan

Piano Garden, Philadelphia, Pennsylvania

Belarus

by Giampaolo Macorig on Flickr.Saint Peter’s Basilica at sunset in Vatican City.

Big Sur, California

Tree Camping, Elk, California

Hakone Gardens, Saratoga, California Jayasimha Nuggehalli

Horizons, Marshfield, Wisconsin

Transylvania, Romania laurentiu lentzi