Every year, the colorful murals of Montreal get a complete makeover.

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

Louisa May Alcott based “Little Women” on her experiences growing up in this house with her sisters.

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

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

The exact whereabouts of this surreal cabinet of curiosities are rarely the same place twice.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

A delightful but little-known public observatory and planetarium in Munich.