A website specializing in odd finds around the globe recently listed Vietnam’s monkey bridges, which require people to crouch like a primate to cross, among the scariest in the world.

The site toptensthings.com notes that the unique bridges traditionally are made of a single bamboo pole, though newer models are concrete.

"These bridges are located on several points across the Mekong Delta at the southern tip of Vietnam,” the site says of its 7th place entry in the Top 10 Scariest Bridges of the World. "These bridges are built by hand by local residents and vary from town to town.”

According to the ranking, Aiguille du Midi Bridge in France is the most dangerous bridge because it is a dizzying 12,605 feet above sea level.

Other bridges to make the cut include the Seven Mile Bridge in Florida, the Sidu River Bridge in China, and the Hussaini Hanging Bridge in Northern Pakistan.