St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

A memorial to the beloved brown bear that served in the Polish army during World War II.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

A set of seven houses, each built in a style that represents a European country.

The stunning interior of this Gothic church is covered in ornate gold details.

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

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

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

The world's tallest circular building is loaded with symbolism, but many just see a big donut.

A fantastic assortment of China's finest and most disturbing wares.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

66,000 pieces of art, donated by one of the world's richest men.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Part bookstore, part café, and part forest.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

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

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.