This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The palatial McDonald's that inspired Wesley Willis.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

The world's tallest statue of an American hero.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Walk the whole Mississippi River!

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

This simple, broken column marks the final resting place of one of America's most famous explorers.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This replica of the Greek structure is in the heart of Nashville.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Visit the monolithic tomb of America's most famous general.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The celebrated eyesore created by starry-eyed sweethearts.

The world's brightest bioluminescent bay.

A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Ancient pueblos built into the base of a natural canyon wall.