Pain Free Math

by chrisbwah on Flickr.Demanovska Ladova Jaskyna ice caves, near Poprad, Slovakia.

Narrow Street, Andalusia, Spain

Snowy Night, Moominhouse, Finland

Autumn Bridge, Rugova Gorge, Kosovo

Dresden, Germany

by Dennis Thong on Flickr.Matsumoto Castle is one of Japan’s finest historic castles. It is located in the city of Matsumoto, in Nagano Prefecture.

Blarney Castle, Cork, Ireland

by beeffaucet on Flickr.The turquoise thermal pools of Semuc Champey - a popular swimming attraction in the department of Alta Verapaz, Guatemala.

“ Volcan Osorno with Lago Llanquihue / Chile .”

Graffiti art on medieval walls, Kelburn Castle / Scotland

Ice arches in Zhaolin Park, Harbin / China

Yoho National Park, Canada Shuchun Du

by ©haddock on Flickr.Mitacocha Lake , Huayhuash mountains in the Peruvian Andes.