Seljalandsfoss waterfall in the south of the island, Iceland

Seljalandsfoss waterfall in the south of the island, Iceland

Man takes a bath in waterfall, Los Chorros Falls, Poas Valley, Costa Rica, Central America

Hot pool on the Rainbow Terrace at Orakei Korako Geyserland, The Hidden Valley, North Island, New Zealand, Pacific

Wailuku River Rainbow Falls State Park on the Big Island, Hawaii, United States of America, North America

Rainbow Falls, a waterfall at Kerikeri in the Bay of Islands, Northland Region, North Island, New Zealand, Pacific

Rainbow Falls, a waterfall at Kerikeri in the Bay of Islands, Northland Region, North Island, New Zealand, Pacific

Rainbow Falls, a waterfall at Kerikeri in the Bay of Islands, Northland Region, North Island, New Zealand, Pacific

Grand Prismatic Spring in Yellowstone National Park, United States

Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe

Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe

Blahver, blue spring, the most beautiful blue water pool in Hveravellir in the Highlands, in front of Oeskjuholt, a steaming calc-sinter mound which looks like a mini volcano, below a rainbow, Hveravellir, Iceland, Europe

Hawaii, Big Island, Hilo, Wailuku River State Park, Rainbow Falls, Rainbow in mist of waterfall.

USA, Washington DC, National Mall, National World War 2 Memorial, Plaza with Northern Triumphal Arch.

USA, Washington DC, National Mall, National World War 2 Memorial, Two of the memorial's granite pillars.

USA, Washington DC, National Mall, National World War 2 Memorial, Plaza with fountains and granite pillars.

USA, Washington DC, National Mall, National World War 2 Memorial, Southern Triumphal Arch.

USA, Washington DC, National Mall, National World War 2 Memorial, Northern Triumphal Arch.