A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

It's not a typo, now say it five times fast!

This small-town pizzeria won the Hollywood lottery.

Cryptic messages embedded in the New York City sidewalk.

A semi-scholarly approach to sex.

There must be a pun in this haystack somewhere...

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

Sniff the Titan Arum's rotting flesh.

Avoid gangster interaction while window-shopping.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The massive Roman arch in New Hampshire that was meant to be a tomb.

Once one of the largest producers of pig iron in the world.

A tribute to Ponce de Leon's supposed quest for eternal youth.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A fitting attraction for the corn capital of the world.