by Marshall Ward on Flickr.The Blue Pools in Mt Aspiring National Park, South Island, New Zealand.
by Andreas Stephan on Flickr.Beautiful karstic rivers of Phong Nha Ke-Bang National Park in Vietnam.
Freight trains encounter, British Columbia / Canada
Ponta de Piedad near Lagos, Algarve Coast, Portugal
by from_the_sky on Flickr.A view from the top – Santorini, Greece.