Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

Week-long block party becomes a competition for the best decorated street.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Mountain where Jesus was first tempted by the Devil.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

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

This semi-secret storybook hedge maze is also the oldest garden in the city.

A beautiful but toxic fountain of mercury.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

This cemetery features modernist statues as strange as its name.

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

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

Some islands... they come, they go, especially on Lake Travis.

A view-altering observatory at the University of Texas.

To honor a beloved Austin radio DJ a neighborhood bridge has been covered in a loving mosaic.

A tribute to the "toughest woman on the Texas frontier," who survived a famous battle and five husbands.

A small island hides in plain sight on Austin's Lady Bird Lake.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.