The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Paranormal activity on the great lakes.

This Wyoming town is fascinated by a particular mythical creature.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

The second oldest continuously operating bar in Louisiana.

Legends surround this jagged rock formation in the New Mexico desert.

Version of the French Riviera destroyed by the sea.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

The only diamond mine in the world where you can keep what you find.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

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

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

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

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.