United States | Washington, D.C.
Walk by many of the foreign embassies in Washington on a fun and interesting walking tour. Once known as Millionaires' Row, many of the large homes along this stretch of Massachusetts Avenue have been converted into embassies.
Spain
The Sagrada Familia, Gaudi's most famous architectural accomplishment, is truly awe inspiring. If you see one thing in Barcelona it should be this.
Spain
The city's park, designed in part by Gaudi, offers some of the most whimsical Gaudi architecture found in the city.
Spain
No, this is not Barcelona's most famous cathedral - that honor goes to Sagrada Familia - but this is Barcelona's huge Gothic cathedral from the 14th century (minus the 19th century facade) which played a significant part in the history of the city.
Spain
While Casa Batllo has a better exterior, Casa Mila is probably the better of the 2 most famous Gaudi apartments to see because of it's funky roof and lovely interior, made at the height of Gaudi's career and with original furnishings (vs Casa Batllo where only the exterior was designed by Gaudi)