This elaborate towering structure was once famed for its revolutionary height.

Step inside Lucy, the world's largest "elephant."

Yo, Adrian!

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

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

Dr Barnes' $25 billion private collection of art and arboretum.

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.

A unique sculpture park that specializes in the huge and bizarre.

San Diego's most historic and haunted home.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

See massive fossils that are over 200 million years old in northeastern Arizona.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Mysterious rocks that ring musically when struck.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.