Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Hear the quietest sound from across the dome.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The only quarter of the Old City not dedicated to a major world religion.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

A celebration of Colombia’s premier contemporary artist.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Colombia's biggest botanical garden contains plants from all across the country.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

Two identical statues by Fernando Botero, one blown to pieces in a terrorist bombing, the other donated as a gift for peace.

Barça football fans might see the insignia hidden in a church window as a divine sign.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

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.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

The other side is actually green.

Traditional 11th-century outdoor tannery.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.