Pain Free Math

Snowy Day, London, England

Louth Canal walk in Lincolnshire, England

Brent de l'Art Canyon, Veneto / Italy

Flower vases on the streets of Taormina / Italy

by Lidia Ilona on Flickr.Vardzia Cave City is a cave monastery dug into the side of the Erusheli mountain in southern Georgia. The monastery was constructed as protection from the Mongols. and...

by pe_ha45 on Flickr.Schwerin Castle located in the city of Schwerin, the capital of the Bundesland of Mecklenburg-Vorpommern, Germany.

Winter Fog, Bluefield, Virginia

by Michele F. on Flickr.The unique architecture of the Unesco World Heritage City of Sanaa at sunset - Yemen.

Verde River, Guadalajara, Mexico

Over-Water Resort, Moorea

State Bedroom of the Empress Maria Feodorovna at Pavlovsk Palace, Saint Petersburg, Russia

Waterfall walkway at Glenariff Forest Park, Co Antrim, Northern Ireland

Montreux, Switzerland Florin Biscu

The sun above Magdalenefjorden, a beautiful fjord in Svalbard Archipelago

by abhisheksapre on Flickr.Tirathgarh Waterfalls situated in Kanger Valley National Park - state of Chhattisgarh, India.

Waterfall in Parco Nazionale della Majella, Abruzzo, Italy

Iceland

Gondolas, Venice, Italy

Glacier Fed Lake, Alaska