Once the world's most modern observatory, this building is now a private school.

A statue of the heroic plumber stands outside a company that bluffed its way into being Nintendo’s Scandinavian distributor.

This cone-shaped bomb shelter, modeled on German design, is a rare WWII relic that never saw use but still looms over the harbor.

Sweden's largest remaining gantry crane is a relic of Gothenburg's industrial past.

This beacon honors a Nobel Prize-winner whose technology powered its light.

One of the earliest subway stations in Stockholm, which still looks like the 1950s.

The technology company Ericsson erected a real rune stone to mark the birthplace of the wireless technology.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

One of the world's tallest flagpoles.

This statue of an eagle taking flight welcomes visitors to Langkawi.

This gorgeous Peranakan mansion’s family heritage includes a century-old baby gate, which was also used to keep out irresponsible husbands.

Built by the Portuguese colonists in the early 16th century, this fort is one of the oldest European structure in Asia.

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

After being bombed and largely abandoned, this former railway workshop has been transformed into a lively market space.

Next to the Malaysian Prime Minister’s office stands this rose-colored mosque.

Hang out with thousands of butterflies in one of the world's largest such enclosures.

The largest tea plantation in Southeast Asia supplies gorgeous vistas alongside tea for the surrounding countries.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.