Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

A set of seven houses, each built in a style that represents a European country.

Luxembourg's most popular statue since 1923 has been missing for... 26 years!

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The now-serene site of the largest earthquake ever recorded in North America.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Since 1942, this third-generation Cantonese barbecue join has been turning out gorgeously lacquered roasted meats.

Peace Park and the Atomic Bomb Dome.

An eerie reminder to the horrors of World War II.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A display of magnificent stained glass windows is the first exhibit of its kind.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

This historic hotel invented the chocolate brownie.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A floating cat sanctuary on an Amsterdam canal.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.