One of the oldest seagoing boats in the world can be found at the Dover Museum.

An eccentric inventor's castle home with its own indoor weather system.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

One of the last remaining movie theatres in the country that features a rear-projection system.

The poems Nathaniel Hawthorne and his wife Sophia etched into its windows are still visible today.

This charming, narrow-gauge railway in the Thames Estuary is sometimes referred to as the "Train to Nowhere."

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

This engineering marvel is the longest bridge in Canada and one of the longest spans in the world.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Staten Island's original central park is the former home of the city water supply as well as thousands of immigrant graves.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

Found: Garden of Eden in Miami-Dade County, Florida.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

A set of medieval stained-glass windows tell the gruesome story of a Viking siege.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

The historic home still shows the scars from a little run-in with the British in 1813.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Last church of this militaristic WWII style.

The remains of a hospital ravaged by fire, once a progressive place of innovations for disabled children.

Civil War Fort on an island in the Boston Harbor.