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.
Italy | Sicily
This Norman-era church in Palermo doesn't look like much from the outside—it was founded in 1143, but a rather uninspiring baroque facade was added in 1588. However, the interior is worth a visit. The highlight is the remarkably well-preserved original mosaics, likely created by Greek artists from Constantinople.
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.
Italy | Sicily
Palermo's massive cathedral is worth stopping by if you're in the area, but it pales in comparison to the intimate beauty of Capella Palantina or the grandeur of Monreale Cathedral.
Italy | Sicily
A beautiful baroque church in Palermo. Highlights include the old convent and terrace with views of the city.
Vietnam
A fantastic day trip from Hanoi that mixes natural beauty with history and culture. You'll see Hoa Lu ( Cố đô Hoa Lư), Vietnam's beautiful historic capital, cruise the rivers near Tam Coc, and see Bich Dong Pagoda.
Thailand
Much smaller than either Wat Pho or the Grand Palace, Wat Arun is nonetheless one of Bangkok’s most iconic sights. It’s the only wat in Bangkok that tourists are allowed to climb.
Thailand
Wat Pho is a large temple complex with numerous religious buildings, hundreds of Buddhas, and a massage school. Be sure to see the reclining Buddha and to get a reasonably priced massage.
Thailand
Bangkok’s most popular site houses several temples and religious buildings as well as the palace and a few government buildings. Every structure on the palace grounds is ornately decorated and stunningly beautiful. The religious buildings on the raised terrace to your left as you enter were particularly beautiful.
Vietnam
Established by French colonists, the Notre Dame Cathedral of Saigon was built between 1863 and 1860. The materials were imported from France, and the cathedral features beautiful Romanesque bell towers.