This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

A statue of a Scottish cultural icon in central Sydney.

This work of art was designed to represent the Tarpeian Way Quarry that once dominated the area.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

Come for the flowers, stay for the bats!

This public art is inspired by a local Aboriginal creation story.

These flying foxes dangle from the trees around the library like fuzzy black fruit.

Its most enigmatic sculpture is a giantess with a ghostly face on her knee.

A small building that loosely resembles a tooth is appropriately used as a dentist office.

The former headquarters of Mexico's Secretariat of Public Education now houses a muralism museum, including Diego Rivera's first large-scale mural project.

Sample sweets at an Art Nouveau candy shop that's been in business since 1874.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

These subterranean models show Mexico City's central square during three different eras.

This museum houses two of Mexico's most impressive Aztec monoliths.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

A fake town founded by Western movie stars is now becoming a hip desert community.

While not Turkey's deepest underground city, this subterranean redoubt is the largest.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Fantastic lake on the heart of a fault line.

Quite possibly the oldest love poem known to humankind.

A marvel of Byzantine engineering under the streets of Istanbul.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

A fountain standing as a testament to a doomed alliance.