A scene from one of Hungary's most famous novels.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

A unique hotel for the artistic soul.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

A beautiful maze marks where three countries meet.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

After years of being casually peed on by humans, this tree is peeing back.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

The former home of a mad diplomat is said to still be marked in bloody, arcane scrawls.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

Museum preserving torture methods from the past.

The last of Amsterdam's original sea level markers remaining in place.

A floating cat sanctuary on an Amsterdam canal.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Colorful and chaotic stacked hotel in North Holland.