The whole world in one water tank.

Built by the patriotic residents of Boonsboro in a single day.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

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

Walk a trail through a historic Quaker town that outlawed slavery in 1777 and was a major waypoint on the Underground Railroad.

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

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

A museum dedicated to exhibiting remarkable outsider art.

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.”

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

This kitschy tavern is also home to rare early editions of "Treasure Island."

An award-winning children’s garden enchants visitors at the intersection of natural beauty and fairy tales.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

This geothermal hot spring hides beneath a slowly growing mineral dome.

A former major munitions plant that has been converted into a sprawling art space.

An original apothecary from 1792.

Alexander Hamilton’s creation caused quite a bit of controversy.