Bramha Temple is alone in the World.

One of the major thriving temple of Brahma, in Pushkar can be identified by its red Spire and By the image of Hans (The swan considered sacred to Lord Brahma). The "Chaturmukhi" (Four Faces) Brahma idol is housed in "Grabha Grih" (WOMB house) which is the sanctum sanctorum. The sanctuary has silver doors inside a carved marble gateway. Steps in the corner lead to a small cave dedicated to Lord Shiva. A beautifully carved silver turtle is set on the floor in the front of the "Garbha Grih". This temple Built with Marbles is Decorated with Silver Coins. The temple walls are also adorned with graceful peacocks, the celestial vehicle of Goddess "Saraswati" (The Goddess of wisdom and Consort of Lord Brahma.).

Brahma forms the great Hindu trilogy of Brahma, Vishnu and Shiva, each symbolizing the lifecycle of birth, preservation and destruction. Brahma the creator is depicted as of four bearded heads and four hands each holding a book of Vedas (knowledge). His vehicle is the swan and his consort is Savitri.

According to the "Padam Puran",The Hindu religious text

Pushkar means a pond created by flower, was formed when Brahma dropped a lotus flower on the earth to determine a place for his yagna, a holy sacrifice.
The story goes that Brahma wanted to perform the yagna at the most auspicious time but his consort Savitri whose presence at the yagna was vital for its performance kept him waiting. Irritated by this Brahma married Gayatri, a milkmaid and installed her instead. Savitri on seeing someone else in her place was infuriated and cursed Brahma that he would be forgotten by people on earth and never worshiped.

She relented on pleas from other Gods that he could only be worshiped in Pushkar, hence there are no Brahma Temples elsewhere