Italy, Lazio, Rome, Colosseum, cross section of the Colosseum showing viewpoints and different levels.

Italy, Lazio, Rome, Colosseum, view of Colosseum interior showing arches & different levels with people at viewpoints.

Italy, Lazio, Rome, Crypta Balbi, lower levels.

England, East Sussex, View over the Pevensey Levels.

England, East Sussex, View over the Pevensey Levels.

Iceland, Southwest, Gullfoss Waterfall and Gullfoss Gorge, on the Hvita River.

Iceland, Southwest, Gullfoss Waterfall and Gullfoss Gorge, on the Hvita River.

Myanmar, Mandalay, Pagoda at Chinese Temple, Pyin Oo Lwin, also known as Pyin U Lwin and Maymyo.

Norway, Rogaland, Svandalsfossen, Waterfall near town of Sauda. White water flowing over tiered levels of rocks and through narrow rocky gullys in foreground surrounded by trees and vegetation.

Norway, Rogaland, Svandalsfossen, Waterfall near town of Sauda. Tiered levels of rocks with multiple streams of white water flowing down surrounded by trees and vegetation.

Norway, Rogaland, Svandalsfossen, Waterfall near town of Sauda. Tiered levels of rocks with multiple streams of white water flowing down surrounded by trees and vegetation.

Greece, Attica, Athens, Stone seating in Odeon of Herodes Atticus, located on southwest slope of the Acropolis.