The Sagrada Familia is probably one of my most favorite pieces of architecture in the world. I want to go to Barcelona purely so I can see it in person.
Art Nouveau Doors
(Photos uncredited as I collected them on my hard-drive a long time ago!)
Nahargarh Fort, Jaipur, India
Nahargarh Fort stands on the edge of the Aravalli Hills, overlooking the pink city of Jaipur in the Indian state of Rajasthan. 
A Trip to Istanbul’s Hagia Sophia (Ayasofya)
Originally a church, then a mosque and now a museum, the Hagia Sophia is Istanbul’s most famous monument and one of the most important religious structures on the planet.
For a millennium after its construction in the sixth century, the Hagia Sophia was the world’s largest cathedral. Its famed dome rests on an arcade of 40 arched windows and remains one of the largest in the world, standing 55 meters (182 feet) from floor level at its maximum. From Byzantine mosaics to calligraphic roundels and even scaffolding from ongoing restoration, layers of the building’s history can be viewed all at once. To get a first-person look inside the Hagia Sophia, be sure to visit the Ayasofya (Hagia Sophia) location page.
Abandoned city of Keelung, Taiwan
Whoa. — rachel
This looks like something you’d spend months building in Minecraft!