An enormous, inside-out glass globe built in 1935.

This heritage museum highlights the importance of the dairy cow as a vital part of rural Maryland's past, present, and future.

This Asian-inspired tower in a lush urban park provides spectacular panoramic views of Baltimore.

A massive white oak tree provides a beautiful canopy near a suburban shopping center and stood before the signing of the Constitution.

Although built to generate electricity for Marylanders, this dam has become an all-you-can-eat buffet for American bald eagles.

A state park that once served as an important river crossing, and now offers protected lands for endangered plants and animals.

This historic lighthouse was well known for the large number of women who served as its keeper.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

Two dozen pinball games hidden away inside a most unlikely location.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

Once part of a dam servicing an early 19th century grist mill, the tucked-way falls are a tricky-to-find urban oasis.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

A priceless collection of the Nation's cryptologic history.

The land is home to swimming ponies and a legendary 18th-century treasure.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

This free, take-a-book shop seems like a trick but isn't.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A shoreline exhibit describing the disastrous first attempt by the French to colonize North America.

This nature mural exists to protect the surrounding environment and its own canvas from destruction.

Five mythical trolls have taken up residence in woods and hidden on paths at the Coastal Maine Botanical Gardens.