The red crab exhibits one of the most spectacular migrations on earth, despite manmade obstacles.

One of New Zealand’s few castles boasts beautiful gardens, grand architecture, and a history filled with family drama.

Hidden in the hills is a mysterious stone structure, known only to a few.

Fabulous formations, weird and wonderful wildlife.

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

Anatomical cabinet holds unexpected treasures.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

Amsterdam's Red Light District leaves little to the imagination.

The remains of this ornate chapel now act as a portal to a cramped French cemetery.

At this monastery, monks make raw-milk cheese and use excess whey to create methane that powers their hot-water system.

A functioning Roman-era aqueduct and bridge in rural southwest France.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

The oldest café in Montevideo preserves its history as the city's bohemian hub.

Ecuador's first Catholic church was built by Spanish conquistadors in 1534.

Mysterious Incan ruins on a tiny island in Lake Titicaca.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

Railways may have forged this quintet of lovely tunnels, but now they are open to hikers.

One person's lost luggage is another person's treasure.