Wat Phra Kaew is in the area of the Palace, you can visit all at once. Very pretty building and the surrounding gardens make the place chilled and natural.
WARNING: Travel to Yemen is strongly discouraged due to a state of severe political crisis, as well as a very high threat of terrorist attacks, abductions, tribal violence and general lawlessness. Terrorist groups actively target tourist groups, with targeted suicide bombings and armed ambushes occurring yearly since 2007. Travel in the Saada region of northern Yemen is strongly discouraged because of the risk of violent civil unrest