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

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

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Mountain where Jesus was first tempted by the Devil.

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

Cozy basement bar sports an inventory of over 2,000 beers.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

A museum of magic with a Sadist past.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A man-made island in scenic San Francisco Bay.

Where a staggering 747 ships were constructed during World War II.

Museum dedicated to the terror regimes of Hungary.

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

Budapest's Communist-era statues, banished to the suburbs.

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

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

A walk through the historic city center, under the streets of Seattle.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Mysterious craters may have been home to an ancient cult.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.