This Massachusetts home was the first to have a telephone line and its own phone number: 1.

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

On a trail in Portugal's Barão de São João National Forest, a pile of faces look up at hikers from the forest floor.

Crafted from ocean litter, this sculpture highlights the ills of overconsumption.

The history of drinking is told through 1,800 cups, chalices, and glasses at this exhibit.

This Gallo-Roman sanctuary is dedicated to Serápis, god of the underworld.

This enigmatic Roman tower lurks just outside Belmonte.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

Entire apothecaries are on display at this Lisbon museum, which explores the history of medicine.

One of the few places in Portugal where the Celtic ritual of wearing large wooden masks is still practiced.

Europe's largest collection of matchbox designs is a fascinating exploration of the cultural history of the world.

A 19th-century mansion houses the largest collection of gin in the European Union.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

Dead weights honor the dead of Portugal's fishing industry.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

At night, bats patrol this magnificent 18th-century space in search of book-eating pests.

A remote island holds what claims to be Scotland's smallest cinema.