A piece of outsider public art accompanied by a strange urban legend.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

The stone labyrinth in this New Orleans city park was laid to symbolize healing in the wake of Hurricane Katrina.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

A small Richmond island dotted with the remnants of hundreds of years of history.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

This might just be the TARDIS of bookstores.

This free, take-a-book shop seems like a trick but isn't.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

A line of blue paint marks the route of the inaugural parade.