Roam the cradle of the Cuban Revolution with life-sized dinosaurs.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Few other hotels can rival the grandeur of the Castle in the Rockies.

A floating cat sanctuary on an Amsterdam canal.

The attic of a four-century-old canal house hides a clandestine church.

Museum preserving torture methods from the past.

An underground city of salt.

A marvel of Byzantine engineering under the streets of Istanbul.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Honoring the Guinness brewer whose quest for the perfect pint led to the creation of the t-test, a cornerstone of modern statistics.

The celebrated eyesore created by starry-eyed sweethearts.

Beneath the city of Lourdes, France is a massive, concrete church.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

Giant pagoda houses the car that drove Thích Quảng Đức to his death by self-immolation.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

5,000 skulls in memorial to those killed by the Khmer Rouge.

Striking, enormous gold-plated sculpture of Buddha installed in the 19th century.

The gardens and chambers of this Moorish citadel conjure memories of the Alhambra.

This Moorish fortress has guarded Málaga from the slopes of Gibralfaro hill for nearly a thousand years.

The original version of Porto's most famous sandwich is just as good here as it was a century ago.

Elaborate tile work in this railway station tells the story of Portugal.