“This smaller rock drilled a perfect hole through this bigger rock over time.”

“The way the concrete has slowly risen over time from the metal tube of this bollard”

“The perfect gradient — the effect of chlorine over one year on pool towels at the hotel where I work”

“A large tree was cut down years ago. Another tree grew on top of it.”

“What boiling water hitting concrete does”

“Years of a lock grinding on a brick”

“I just found an old roll of biodegradable poop bags, and they really do disintegrate as advertised.”

“This faucet has a snail as an opening valve, and it shines after years of use.”

“A seesaw (teeter-totter) in my local playground where thousands of little feet have worn through the asphalt”

“My work ID has been in its plastic holder for so long that it imprinted this ghostly image of my face.”

“Scratches around an elevator button after years of people trying to press it with a key and missing”

“15 years’ worth of whiskers my cat has shed”

“Due to years of beaver damage, this tree now looks like it’s melting.”

“I was in Ireland 2 years ago and found this piece of a brick wall that had been shaped by the surf.”

“A cross-section of our painter’s 1-year-old stir stick”

“I found some change that had been in the brushes in the clothes dryer.”

“We still have this small pumpkin my wife carved 3 years ago.”

“This is what 15 years of rust accumulation looks like in a 1-inch water pipe.”

“The amount of time this dog has leaned out their window”

“Years of boops have taken their toll on Oden’s nose.”