In 1787, a group of delegates met at this very spot to drink, be merry, and ratify the Constitution of the United States.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

Lucha Libre (Mexican Wrestling) themed taco shop.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

The lake that fills and empties itself at random.

Northern Ireland's Brobdingnagian stepping stones.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

The modern birthplace of Irish freedom.

One of Ireland's most infamous prisons for rebels including men, women and children.

The state's oldest continuously operating museum houses more than 5,000 Civil War artifacts.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

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

Possibly the smallest church in the world floats in the middle of a pond.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

The most confusing clock in New York.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Unrepaired walls from a 1920 anarchist bomb attack.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.