For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

This roadside attraction attracts kids with dinosaurs before blindsiding them with geology.

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

Painstakingly built dioramas sit unnoticed in a Boston office building.

These whimsical works of art tell the story of the city's past and present.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

The site of the first "historically true" UFO encounter in the U.S.

"Mock all and sundry things, but leave the saints alone."

A mysterious collection of stones stand outside a small New England town.

This railroad tunnel was once the longest in Massachusetts.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.