The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

A wunderkammer hidden on the top floor of the Hartford statehouse.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

The Laureates here get something even more coveted than a Nobel Prize: free parking for life.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

137 graves holding New England's earliest residents.

Tucked in the back of this amazing antique store is an important piece of medical history.

Little Red Lighthouse under the George Washington Bridge.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Robots, lasers, and whoopee cushions, oh my!

A unique botanical garden housed in three giant geodesic domes.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

All of Chicago's wood-paved streets are long gone but two alleys remain.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This shop for all your super spy needs hides an educational secret.

A Bibliophile's Dream.

To find the "unicorns of the deep" you've got to go downstairs.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.