The form of the coastline around Durdle Door is controlled by its geology--both by the contrasting hardnesses of the rocks, and by the local patterns of faults and folds.The arch has formed on a concordant coastline where bands of rock run parallel to the shoreline. The rock strata are almost vertical, and the bands of rock are quite narrow. Originally a band of resistant Portland limestone ran along the shore, the same band that appears one mile along the coast forming the narrow entrance to Lulworth Cove. Behind this is a 120-metre (390 ft) band of weaker, easily eroded rocks, and behind this is a stronger and much thicker band of chalk, which forms the Purbeck Hills. These steeply dipping rocks are part of the geological structure known as the Lulworth crumple, itself part of a broader monocline (a kinked type of geological fold) produced by the building of the Alps during the mid-Cenozoic.

Nikon D800E, Samyang 14mm F2.8 IF ED MC Aspherical.

Photo Settings: 14mm, f/9, 1/200 second, ISO 125.

Map: 50.6225, -2.2725

It is a huge valley at 1000 meters off the ground.

Adobe Lightroom 5.3.

Les Maroon Bells (littéralement les « Cloches Bordeaux ») sont une montagne avec deux pics appelés Maroon Peak et North Maroon Peak, distants de quelque cinq-cents mètres. Elle se situe à 20 kilomètres au sud de la ville d'Aspen, dans les monts Elk, à la frontière entre les comtés de Pitkin et de Gunnison, dans l'ftat du Colorado, aux ftats-Unis. Les deux sommets font partie des fourteeners, ceux atteignant plus de 14 000 pieds, soit 4 267 mètres d'altitude. Le Maroon Peak, au sud, culmine à 4 315 mètres (27e plus haut du Colorado) et le North Maroon Peak à 3 048 mètres (50e plus haut du Colorado), soit respectivement 14 156 et 14 014 pieds.

Adobe Lightroom 5.2.

Nikon D800E, Samyang 14mm F2.8 IF ED MC Aspherical.

Photo Settings: 14mm, f/8, 1/160 second, ISO 100.

Map: 39.0983, -106.9433

Taken at sunset. Yellowstone National Park, Wyoming.

Adobe Lightroom 5.2.

Photo Settings: 4mm, f/4, 1/320 second, ISO 100.

Listen the birds around you, the nature call you at Maroon Bells, Colorado, USA.

Adobe Lightroom 5.2.

I love this park because of all the geese.

Sprague Lake, Rocky Mountain National Park, Colorado.

Nikon D800E, Nikon AF-S NIKKOR 24mm f/1.4G ED.

Photo Settings: 24mm, f/8, 1/125 second, ISO 360.

Map: 40.3208, -105.6069

Arches National Park near Double O' Arch.

I love the blue of the water.

Lake Helen. Lassen National Forest. California.

Adobe Lightroom 5.3.

Nikon D800E, Samyang 14mm F2.8 IF ED MC Aspherical.

Photo Settings: 14mm, f/9, 1/125 second, ISO 110.

Map: 40.4667, -121.5103

This is one of my favourite parks in the world.

Adobe Lightroom 5.2

Many people die in these dunes due to the heat.

Adobe Lightroom 5.3

Nikon D800E, Nikon AF-S NIKKOR 24mm f/1.4G ED.

Photo Settings: 24mm, f/5, 1/400 second, ISO 100.

Map: 36.6361, -117.0758