Oldest building in California still in use.

Quite simply the largest tree in the world (by volume).

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

One of the city’s oldest watering holes was originally the home of a famous James Brown (not that one).

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

Why have you never heard of the second most popular tourist site in New York?

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

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

A gigantic 10-foot tall stone man.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A massive Montreal stadium that has seen nothing but trouble since its inception.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Visit a replica of the estate where Aaron Burr allegedly plotted a treasonous scheme against the United States.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Experience a charming 1930's version of "infotainment."

Thousands of glyphs created by an unknown culture decorate the rock formations of this canyon.

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.

A historic freight system that found the true gold rush is in tourism.

Once called the Jersey Lilly, this former saloon was the domain of infamous Judge Roy Bean.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

A tribute to Ponce de Leon's supposed quest for eternal youth.