An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

An exotic wildlife habitat right off The Strip.

This giant temperature attraction created some giant electric bills.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Ten 25-foot-tall, beehive-shaped kilns, abandoned in Death Valley.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

A new monument to an old grave that was uncovered during the rebuilding of a California ghost town.

A volcanic cone that formed over 600 years ago.

This large chunk of dark rock is a relic from an ancient volcanic eruption.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."

The real-life site of Ichabod Crane's infamous gourd attack.

This sound-art installation features songs composed using only the Mid-Hudson Bridge as an instrument.

The debris forms a solemn memorial to those who died in a 1963 accident.

A shoreline exhibit describing the disastrous first attempt by the French to colonize North America.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The Boston square dedicated to the dark poet who was born nearby.

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

A centuries-old church stands as a testament to Boston's "father of architecture."

One of the indelible moments of the American Revolution took place at this location.