On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

These 2000 year old remains of a Roman aqueduct are hidden inside a hotel lobby.

One of 100 “Whaling Wall" murals painted in 13 different countries by a renowned marine life artist.

One of the few brewers in the U.S. experimenting with hop-free beers.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

The head of a legendary lumberjack watches over a river in Maine.

Birthplace of America's first documented serial killer.

Where Kevin Eastman and Peter Laird created their "heroes in a half shell" and founded Mirage Studios.

A stretch of New Hampshire lake water is the only ice runway in the lower 48 states that is FAA-approved.

University of New Hampshire holds the documentation and artifacts of local alien abductees.

A quiet spot commemorating two naturalists who had to choose between love and the university at which they both taught.

This small stone chapel is a hidden gem just outside the University of New Hampshire campus.

A museum dedicated to "science, history and the arts" little changed since 1915.

Once the beating heart of a small Maine town, this old mill was revitalized in part thanks to a starring role in 'Jumanji.'