This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

A layered tribute to the work of mosaicist Isaiah Zagar.

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

A luxuriant botanical garden below sea level.

A gleaming white tower in ornate Indian style soars above the low-slung bungalows of north Tampa.

A whimsical folk art environment where you can lose yourself in the many colors of joy, beauty, and creativity.

Three wildly colorful calderas top this otherworldly volcano chain.

Once home to Komodo dragons, this island dreamscape has a rare combination of white, pink, and black sand beaches.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

In a pedestrian tunnel on North Carolina State’s campus resides an expressive and artistic free-for-all.

Don't be surprised if you see a long-necked dinosaur peeking out from among the trees in Northgate Park.

A table rock formation that has been intriguing West Virginians for years.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This whimsical stacked cabin looks like something out of a children's book.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

A cemetery in Barcelona's Poblenou district is home to this touching funerary statue, which depicts death in the form of a winged skeleton.

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

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