Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

A psychedelic tribute to one of Georgia's most unique artistic visionaries, out of place and time in the heart of Atlanta.

A provocative museum dedicated to the genre and the harsh realities that inspired its origins.

The beauty of urban decay, hiding some dark secrets.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

A historic bridge with a lovely acoustic anomaly.

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

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

An enormous, inside-out glass globe built in 1935.

One of the now-less-hidden floral gems of the "Emerald Necklace."

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

Bouncing, delightful, mechanical art at the MIT Museum.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

The strikingly modern structure stands out among the brick buildings speckling the Harvard Business School's campus.

A steampunk wonderland that preserves America's history of industrial innovation.

Beautiful steampunk ghosts of early Massachusetts.

Located in a beautifully restored ice house, this museum is the result of decades of hard work and devotion to the craft of plumbing.