After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

A vast array of tropical plants collected by a vacationing couple.

A failed piece of Orientalism has become the proud symbol of a community.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

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

The homestead of American patriot John Adams.

This supermarket is suspended 25 feet above an interstate highway.

The world's largest piece of copyrighted artwork.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

This beautiful architectural gem was the first waste treatment facility in Boston.

Impossibly life-like natural history models created out of glass by a father and son.

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

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

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

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

America's original house of worship for Spiritualism, the religious movement based on communing with the dead.

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