This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

Unrepaired walls from a 1920 anarchist bomb attack.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Small ship votives hang from the vaulted ceiling of this port-side church with a Latin inscription on the wall.

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

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Largest Roman Catholic church in North America.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

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

At 207 feet, one of the world's longest continuous escalators.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

A super-sized promotional trick that is now a D.C. landmark.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

The ruins of this long-abandoned unsuccessful gold mine can still be found.

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

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

America's first federal monument.

A historic arena where the Beatles played their first concert in the U.S.