A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

These picturesque ruins crumble beautifully into the ocean.

An early 20th-century bullring converted into a modern shopping center.

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

This fountain was designed to honor the man who helped bring water to Barcelona.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

The last bastion of Roman presence north of the Alps looms over a German town.

This 600-year-old home seems to defy physics.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

Hamburgers are intensely proud of their tunnel beneath the river.

Model Trains and Much More in Hamburg.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

Once the longest swing bridge in Europe.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

An unsigned roadside spring that is pure fun.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

One of Auckland's oldest cemeteries was partially demolished during the construction of a major highway in the 1960s. 

Handcrafted thermal spa washes away each night with the tide.