Eat the ultimate iteration of Portugal's most beloved pastry.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

These small, brass stones commemorate the first Roma victims of the Holocaust.

A concrete plant shaped like four giant soldiers commemorates one of the most decisive battles of the Napoleonic Wars.

Mummified monks and the accidentally interred, in a 17th-century crypt.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Poland's oldest salt mine has nearly everything one needs to live underground forever.

This man-made mound monument was built out of soil from all across the Polish empire.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

The last king of Poland was interred in this church nearly 200 years after his death.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Special benches that play Chopin's music are scattered throughout his native city.

An artificial date palm stands as a memorial to Warsaw's Jewish community.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

A monument to the man who almost killed Hitler.