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

The Boston square dedicated to the dark poet who was born nearby.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

Memorial to a beloved puppeteer as well as all street performers.

This plaque is dedicated to one-half of the Magliozzi brothers and their hit radio show, 'Car Talk.'

One of the last remaining movie theatres in the country that features a rear-projection system.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

This striking art museum holds an amazing series of curiosity cabinets.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

Dakota legend claims this locally iconic pinnacle was once part of a sacred burial site that was cleaved in two.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

A unique botanical garden housed in three giant geodesic domes.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

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

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.