This Khmer-era temple includes a lintel that was stolen and displayed at the Art Institute of Chicago for years before returning to Thailand.

The golden Buddha statue at the Wat Muang Monastery is the tallest in Thailand, and the ninth-tallest in the world.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.

A shrine built to combat the bad karma of a commercial venture.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

One of the highest mountain passes in Europe has been ranked among the best driving roads in the world.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

This lucky bronze frog was gifted to Madrid by a casino.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

The fragmented remains of a massive public bath connected to the city's water supply.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

Bacteria and algae give the salty water its bubblegum hue.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

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.

A temple to modernity, tucked away amid Barcelona's more well known museums.

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

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.