The oldest housing complex in Riga is a mini timeline of architectural trends.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

Belfast's namesake river still winds below the city center, hidden from sight.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

The atmospheric road was never meant to be so creepy.

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

It was once nicknamed "the most bombed hotel in Europe."

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.

This old residential building was once the largest flour mill in the world.

One of two giant blue cockerel statues erected with an intentional double meaning.

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

No one's quite sure where this quirky university tradition originated.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

The only arched bridge made of stone on the entire Mississippi River.

When flour explodes, it's not a pretty sight.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

20,000 pieces in a Frank Gehry-designed building.

Funhouse of found art and participatory sculpture.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

It's just another skyscraper, but it's shaped like '90s cell phone.

This historic Chilean cemetery is the burial place of hundreds of European and American freethinkers and non-Catholics.

Pivotal home of Nobel Prize winner Pablo Neruda.