This modest lottery shop draws hopefuls all year long, but come Christmas season, lines wrap around the block.

This tranquil urban park has a violent history.

Gustave Eiffel's masterpiece until the Eiffel Tower was built.

The original shop where the iconic Belgian praline was invented.

Check the time in 145 countries at once with this East German relic.

This 18th-century pirates lair has been transformed into a museum and luxury event space.

The Spanish writer devoted hours to writing 'Don Quixote' in this house.

A somber statue commemorating a Danish merfolk-tale.

Latvia’s first skyscraper, nicknamed ‘Stalin’s birthday cake.’

Wander down a side street dedicated to one of the members of the Beat Generation.

This historic black and white monastery is one of Bulgaria's architectural jewels.

This building has two facades of clashing architectural designs.

Sofia's legislative center is continuously reinventing itself.

A vast Communist-era exhibition space in the Bulgarian capital.

A striking symbol of the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

Royals, rebels, and artists have all conversed at this grand 19th-century Viennese coffee house.

The scorched Lisbon church that survived two earthquakes and a massive fire.

A comprehensive look at the art of Joaquín Sorolla in his former home in Madrid.

This bronze marker acknowledges an embarrassing royal blunder.

This taberna has been frying up crunchy salt cod since 1860.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Inaugurated three times, this tower offers some of the best views of Madrid.

Sip cherry liqueur at a bar dating back to 1840.