The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.

The little-known final resting place of one of America's greatest writers.

A historical home in upstate New York honors the work of John W. Jones, a formerly enslaved man who was a major agent for the Underground Railroad.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

Traditional 15th century Chinese garden in the middle of Vancouver.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.

This historic Victorian hotel has a scandalous history of affairs and murder.

This historic observatory contains the world's oldest refracting lens telescope.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

Macabre astrological automaton clock dating to the late 1400s.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

The bears of Bern have been a city highlight for over 500 years.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

Caves famous for the dragon-slaying saint who lived there.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.