This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

A magical oasis in the middle of the Negev Desert.

A lush indoor jungle fills this bustling Madrid transportation hub.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

Tel Aviv's popular neighborhood went though endless waves of transformation.

You can row a boat through this ancient underground reservoir.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Manhattan and the Bronx have been playing tug-of-war over this former island neighborhood for more than a century.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

There must be a pun in this haystack somewhere...

An iconic view point of the Sea of Galilee offers a look into Israel's past.

A unique botanical garden housed in three giant geodesic domes.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

A massive Montreal stadium that has seen nothing but trouble since its inception.

The biggest museum dedicated to insects in North America, one of the largest in the world.

A historic Montreal market that was the city's agricultural hub for over century.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

The private island of Yale's elite Skull & Bones society is kind of a dump.