Visit Finnish architect Matti Suuronen's first UFO-shaped home.

Hundreds of signs pointing to the birthplaces of current Helsinki residents form stalactites on the ceiling of the cave-like Kamppi metro station.

The tiny, studious rodents greet visitors to the National Archives of Finland.

In a shopping arcade, a modernized temple deeply tied to feudal Japan’s prominent warlords.

One of Japan's most famous sights, the bridge was originally built in 1673.

An eerie reminder to the horrors of World War II.

Peace Park and the Atomic Bomb Dome.

This Japanese national treasure was originally built in 593.

At the heart of an otherwise bustling city lies some oddly abandoned and ignored historical ruins.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

The 19th-century home of Count and Countess von Hallwyl is now a museum.

A concrete mushroom that divided Stockholm residents for nearly a century.

A Turkish monastery tucked into a cliff wall.

The ceiling of this shopping arcade is adorned with six trompe-l’œil artworks, including a grim funeral scene.

A gigantic mechanical bull rages over unsuspecting passengers at Birmingham’s central station.

A collection of historic buildings in central Birmingham blend seamlessly into the cityscape but have an interesting story to tell.

The largest public library in the United Kingdom was designed to reflect the industrial and artistic history of the city where it stands.

The star-studded street honors the city's most notable Brummies.

A bench and a bridge pay tribute to Birmingham's favorite heavy metal band.

This historic abandoned train station looks like a stop for ghost trains.

This magnificent mural was created with over 30,000 colored bricks.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

A tribute to the women who quietly kept the local steelworks alive during both world wars.

This police call box harkens back to an era of pre-radio communications, and has a rather unique feature.