1. Star Mosque, also known as Tara Masjid, is a beautiful mosque located in the Armanitola area of Old Dhaka in Bangladesh. It is known for its stunning blue star motifs that are featured prominently on the mosque’s facade, earning it the nickname \"Star Mosque\". The mosque was originally built in the early 18th century by Mirza Ghulam Pir, a Mughal nobleman, and has since been renovated and expanded several times.

The most striking feature of the Star Mosque is its intricate mosaic tile work, which includes a beautiful star-shaped motif made from Chinese porcelain. The interior of the mosque is equally impressive, with ornate designs and calligraphy adorning the walls and ceilings. The overall ambiance of the mosque is serene and peaceful, making it a popular destination for both locals and tourists.

2. The working hours of Star Mosque are from early morning to late evening, usually following the regular prayer timings for mosques. It is recommended to visit the mosque during non-prayer times to fully appreciate its beauty. Unfortunately, the phone number for the mosque is not readily available.

3. There is no entry fee to visit Star Mosque. The mosque is easily accessible by public transportation, such as rickshaws or CNG auto-rickshaws, from various parts of Dhaka city. It is advisable to check the current transportation options and routes before planning your visit to the mosque.