Dr Barnes' $25 billion private collection of art and arboretum.

The first American department store, and home to the largest operating musical instrument in the world.

This elaborate towering structure was once famed for its revolutionary height.

Small on the outside, big on the inside, this church is an astonishing act of visual deception.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Three hundred years of preserved Spanish colonial history in San Antonio.

A museum and shop on Bourbon Street located in the French Quarter.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

Portlandia is the second-largest copper repoussé statue in the United States.

Cryptid lake monster honored with its own monument.

Scary metal statues adorn some of the signature buildings of Burlington, Vermont.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

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

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