Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

The homestead of American patriot John Adams.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

This bright yellow relic is the final survivor of a short burst of seashell-shaped petrol pumps.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

This cubist Vienna church building looks like some sort of alien stonehenge.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

A unique opportunity to stay the night in retrofitted sections of sewer pipe.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Rustic natural hot springs in the deciduous rain forest.

A cluttered and astounding collection of antiquities and curiosities.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

The magic's in the hole!

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

A marvel of Byzantine engineering under the streets of Istanbul.

One person's lost luggage is another person's treasure.

The beautiful baroque library of the Hapsburg empire.

The world's brightest bioluminescent bay.