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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

This historic stone bridge has an entire neighborhood clinging to its sides.

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

Ancient snack bar of the Roman Empire re-opened.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

Scattered throughout London are ancient remnants of the city's former bounding wall.

One of the world's largest collections of pathological specimens.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

A monument celebrating the idea of reaching inaccessible places.