A sweet symbol marks the place where torturous executions were once carried out.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Where the U.S. government kept its actual treasure, before Fort Knox.

Possibly the oldest church in Barcelona, this basilica has its pagan and Christian mythologies all mixed up.

The great Danube river starts here.

Of course the grave of JFK's assassin is surrounded by conspiracy theories.

An extensive, if one-sided, history of U.S. law enforcement's war on drugs.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

A folly built to satisfy a gentleman's bet that he could drive his horses through the eye of a needle.

The former 1920s mansion of a prominent Catalan developer was used as the Soviet Embassy during the Spanish Civil War, and there is still a bunker below the garden.

A huge maze complex and whimsical miniature village in Tasmania.

The studio of Catalonia's most famous theatrical designer remains exactly as he left it.

Inmates dig the graves at the largest prison cemetery in the U.S., the final resting place of both cowboys and Indians.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

Once the supplier for noteworthy projects like the National Cathedral, this old brickworks now lies abandoned.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

The first model village in Brazil, built in 1917 to house workers at the jute sack factory.

You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

The remains of a British railway rusting in the jungle mist of a Brazilian mountainside.