The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

Contains a wealth of information about the first exploration and later use of the Green and Colorado Rivers.

This Moab institution functions as both a rock store and a small natural history museum.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

This statue intended for children to enjoy became a minor political spat.

This impressive Boston holy house is the American mecca for Christian scientists.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Tragedy on Little Brewster Island memorialized.

This small glass cube is a peaceful out-of-the-way sanctuary at the busy airport.

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

Historic Hull Street was actually the first street with a proper name in the Boston area.

An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

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

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

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

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

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

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

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

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The massive machine creates cracking displays of indoor lightning.