This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

Mussolini gave Cincinnati a bronze statue of Romulus and Remus suckling at a wolf's teats.

What is it about mushrooms that makes people wish they lived inside of them?

An art deco ice cream shop covered in vintage train station tiles.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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

Yo, Adrian!

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

Where America's first doomsday cult awaited the end of the world.

Mysterious rocks that ring musically when struck.

American involvement in World War I officially ended in 1921 in New Jersey, three years late and thousands of miles from the battlefield.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

One man's lifelong obsession with death.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This tiny structure was built by the creator of the Brooklyn Bridge.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.