Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

Hamburgers are intensely proud of their tunnel beneath the river.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

A Milanese café entirely designed by the American director Wes Anderson.

Famously misunderstood wonder of the ancient world

A church of bones, decorated with 40,000 human skeletons.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Macabre astrological automaton clock dating to the late 1400s.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A decaying, yet still functioning, work of communist architecture.

Rock carving created 1,300 years ago 75 feet off the ground.

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

UNESCO-protected ancient burial ground.

A striking symbol of the Bulgarian capital.

This historic black and white monastery is one of Bulgaria's architectural jewels.

An abandoned saucer-shaped monument in the Bulgarian mountains.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Go deep down into the earth to experience the world of Welsh coal miners.

This former Welsh metal factory is now a lovely abandoned relic but was once one of the industry's world leaders.

The castle still holds traces of the abandoned Roman fort it was built atop.

Stroll through Welsh history in a village of reconstructed structures.

The longest and tallest aqueduct in Britain can actually be sailed across.