The only surviving piece of Copenhagen's 16th-century defensive wall.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

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

Hans Christian Andersen for the postmodern world.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This floating sculpture of ice is a poignant reminder of nature's power.

A fascinating insight into daily life in the Eastern Bloc.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

An obsolete form of timekeeping still marks the hour in this adapted 19th century lighthouse.

Enjoy all the trappings from 1912 aboard this Titanic-themed restaurant.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This black shoreline is made up of exploded lava particles.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

This historic tall ship traveled 1.5 million miles around the globe, and once did duty as the mythical pirate ship in Peter Pan.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

One of the oldest theaters in Australia, it's also said to be haunted by a performer who died on stage.

Come for the flowers, stay for the bats!

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

Pompeii's less famous neighbor is still revealing her secrets.