The lavish, well-preserved home of a wealthy Baba Nyonya family is now a cultural museum.

A striking public sculpture representing the period of martial law in Communist Poland.

A collection of old neon signs from all over Poland line a secluded courtyard.

The silly symbol for an underground protest group is now scattered around the city.

Europe’s oldest natural human mummy.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Every inch of this chapel is covered in craftsmanship from across the world.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Italian cave with exceptional acoustics and an unsavory history.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

A beautiful lighthouse with as many steps as days in the year, as many windows as weeks, and as many levels as months.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Rumors and legends of secret Nazi activities surround this eerily remote island mansion.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The 28-foot granite map plots the locations of 40 theaters in New York City.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.