A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Mountain where Jesus was first tempted by the Devil.

This cemetery features modernist statues as strange as its name.

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

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.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

A staircase made of gravestones leads up to this church built into a giant rock.

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Hear the quietest sound from across the dome.

One part local history, 99 parts gruesome haunted house.

Fantastic views and thousands of love locks.

Carved fountains poignantly placed in parks and in front of special monuments.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

A monument marks where a convent was burned by an anti-Catholic mob in 1834.

The ruins of one of the first railroads in the U.S. lie hidden within a neighborhood cul-de-sac.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

This small shop walked so America could run on Dunkin'.

This unassuming stone commemorates a condiment factory gone up in smoke.

This railroad tunnel was once the longest in Massachusetts.

This tower pays homage to a legendary Viking fort established in Massachusetts that never really existed.