4.) Rakotzbrücke, Kromlau, Germany
Though it looks ancient, this bridge, which creates a stunning circular reflection, was actually built in the 1860s. Bridges like this are also known as “Devil’s Bridges,” some of which date back to the Middle Ages. The ominous name comes from their narrow, scary-looking construction. This bridge is currently off-limits to climbers, but you can take all the photos you want.