Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

A magical place that lets you play in and explore the world of Studio Ghibli.

Home to a protest movement, a bombing, and a dramatic change in labor history.

360° views of the city plus five floors of optical illusions and hands-on science.

Used as an example in one of the first dictionary entries for "museum" in 1706.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

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

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

Dramatic river bend surrounds a natural red-rocked pedestal.

Ride the subways of yesteryear.

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

An architect's childhood fantasy treehouse made real.

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

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Come for the speed, leave in love with the desert.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.