This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

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

It houses the remains of a 17th-century version of the Titanic.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

This chimerical bridge/tunnel appears to dead end right into the sea.

The world's first combination ski slope and power plant.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Copenhagen's celebrated theme park and gardens.

This cheese shop also houses a museum devoted to Dutch dairy.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

Iceland's tribute to its thankless civil servants.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Three columns of volcanic rock shoot out of the ocean.

This stunning concert hall has become a symbol of Iceland's national recovery.

This abandoned five-star hotel is now a five-star urban exploration destination.

When Azorean green tea meets volcanic hot springs water, a luminous brew is born.

San Francisco's newly reopened hands-on science museum.

A huge musical instrument played by the ocean.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.