As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

This former coal gasification plant found a curious second life as a popular public park.

Craft liquors concocted in an old Seattle warehouse.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

Pompeii's less famous neighbor is still revealing her secrets.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

This controversial depiction of the "Founder of California" looks as though it was sculpted from mashed potatoes.

A classically inspired temple in Redwood City.

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

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Northern Ireland's Brobdingnagian stepping stones.

One of Ireland's most infamous prisons for rebels including men, women and children.

Unusual British home built to disguise a water tower.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

The smallest pub in Britain was once a cabinet of curiosities and it still has the dead cat to prove it.