(via chinaoffseason, Clint and Food/Architecture/Culture/Travel)

The 3.3 ft (1 m) wide El Caminito del Rey, Malaga, Spain, 330 ft (100 m) above El Chorro river, built between 1901 and 1905 for workers to cross between two hydroelectric power plants.

It may be the most dangerous cliff-side pathway ever. There aren't any handrails and some sections are crumbled. It's closed since 2000, but it will reopen in 2014.

(via Wikimedia Commons and Gabirulo)

Walk Of Faith, a 3 foot (90 cm) wide, 2.5 inch (6.3 cm) thick glass walkway 4690 ft (1430m) above sea level, on Tianmen Mountain, China

(via Shutterstock/SIHASAKPRACHUM and Zhangjiaije)

Huangshan (Yellow Mountain) mountain range, China with more than 30 miles (48 km) of stairways on cliffs

(via Ehab Samy)

The ancient Baoxie Plank Road, built during Emperor Huiwen's reign of the Qin State (c. 320 B.C.). It covered a total distance of 155 miles (250 km) but now only a restored section is walkable.

(via China Bravo, Shaanxi University of Technology and China.org.cn)

The plank road with 217 steps near the 233 ft (71 m) tall Leshan Giant Buddha, the largest stone Buddha in the world and the tallest pre-modern statue in the world, built between 713 and 803.

(via Wikimedia Commons and Eric 1 – 2)

Angels Landing (also known as the Temple of Aelous), Zion National Park, Utah

2,000ft (610 m) straight drop on both sides of this walkway.

A 2.4 mi (3.9 km) long trail was cut into solid rock in 1926.

(via jabbex, Wikimedia Commons and Jungle Training)

El Peñón de Guatapé (mean The Rock of Guatapé, also known as La Piedra Del Peñol), near Guatapé, Antioquia, Colombia

There is a massive crack in the rock, where the first people climbed the El Peñón de Guatapé in 1954. A few years later a 649-step masonry staircase was wedged in there.

Fun fact: Today the giant granite dome is apparently owned by a local family, according to Atlas Obscura.

(via I.D. R.J, Hugo Pardo Kuklinski)

Bonus: Building a walkway thousand meters up the slopes of Shifou Mountain, China