The history and future of cannabis.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

Northern Ireland's Brobdingnagian stepping stones.

Sweden's "good old days" painstakingly re-created in a model village.

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

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A black cat protests the City Guild in Riga's Old Town.

3,000 market stands in five former Zeppelin hangars.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Cold war icon and onetime "hole" in the iron curtain.

Where once there was a train station bathroom, there is now this German burger joint.

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 "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

An abstract monument to a symphonic composer.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

A former imperial sea-fortress and Soviet prison.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Nordic giants resurrected from the sea and restored to their former greatness.