Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A massive sea stack famous for its appearance in The Goonies.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Two thousand artifacts from around the world collected by one woman who loved to travel.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

The former home of a Boston physician whose murder led to a revolution in forensic science.

The bench featured in the film with Robin Williams and Matt Damon has become a popular destination for moviegoers.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

Created by a local artist, these quirky sculptures each have their own names and personalities.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This plaque is dedicated to a historic hotel’s Canine Ambassador and the subject of two children’s books.

The fictional star of "Breaking Bad" is memorialized with a real-life gravestone in his hometown.

A sculpture of a flying hawk made from colorful car doors.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

The ghostly remains of what was once the world's richest copper mine.

A colossal gold-dredging machine from the Klondike mining boom, now open to tours.