Covering 37 subterranean acres, this Armillaria gallic is a famous fungus with its own festival.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

The only surviving prototype for Buckminster Fuller's house of the future.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

Expertly restored pinball machines as far as the eye can see.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

This log cabin gallery is one man's gnarly, hand-carved tribute to his favorite trees.

This museum remembers an apocalyptic cult that became more famous for baseball than religious radicalism.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

There are two legends behind the origin of this unusually tall sanitary structure.

The headquarters in Salem doubles as an occult art gallery.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Painstakingly built dioramas sit unnoticed in a Boston office building.

Historic Hull Street was actually the first street with a proper name in the Boston area.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

A cemetery where many of those buried had a flair for the dramatics.

Turntable anonymously received orphans, alms, and groceries.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

An early 20th-century bullring converted into a modern shopping center.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.