A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The first declared National Monument in the United States.

New fungal and bacterial species call this deadly lake home.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The site of Paul Revere's historic two lantern warning.

This landmark cemetery in Boston was created more than 300 years ago.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

The legendary building that needed ghostly approval before being built.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Historic funicular railway, believed to be the shortest railroad in the world.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.