The abandoned site of the Beatles spiritual awakening and subsequent revolt.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

Modest by day, illuminated majestically at sunset.

This ancient Hindu temple is covered in thousands of colorful statues and has a long mythological history.

This experimental utopian "city of the future" in rural India may hold a dark secret.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The world's second-largest sundial, made entirely out of stone.

The remains of what was, not so long ago, the world's largest city.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

An ancient octagonal weather station named for the eight Greek gods of wind.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

A Nesting Doll of Churches.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Where Venice's gondolas go for a tune-up.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.