9 Periscopes Surprisingly Not Connected to Submarines

The periscope only came about with the advent of the submarine, right? Wrong. These handy, corner-checking devices have been used everywhere from the trenches of WWI to aboard the Gemini Spacecraft. Our friends at Oobject have collected nine of the best examples.
And when you're done checking those out, take a look at these terrestrial submarines, drug smuggling subs, decommissioned subs, and 12 torpedo rooms.

9 Periscopes Surprisingly Not Connected to SubmarinesS

Periscope on board a VC10 commercial airliner

9 Periscopes Surprisingly Not Connected to Submarines

Gemini Space Project Launch Complex Periscope

The orange cover is a protective cushion to stop people banging their heads on it.

9 Periscopes Surprisingly Not Connected to SubmarinesS

1920s Bank Vault Periscope

9 Periscopes Surprisingly Not Connected to SubmarinesS

Beautiful 1960s Carl Zeiss Periscope

9 Periscopes Surprisingly Not Connected to SubmarinesS

19th C Periscope creating illusion of seeing through stone

9 Periscopes Surprisingly Not Connected to Submarines

Gundlach 360 degree periscope

This periscope, designed for tanks, enabled looking in any direction, without the viewer turning.

9 Periscopes Surprisingly Not Connected to SubmarinesS

Inverse periscope, land to water

For sketching fish, apparently.

9 Periscopes Surprisingly Not Connected to SubmarinesS

WWI Stick Trench Persiscope

Long before they become associated with submarines, periscopes were commonly used to peek above trenches in WWI

9 Periscopes Surprisingly Not Connected to SubmarinesS

Thirty-Foot Golf Periscope