Portas do Cerco is the gate that marks the border between Macau and mainland China. The name actually means "siege gate" though in English it is called Barrier Gate. It got its name from the gate that was constructed in 1574 by the government of China, to separate it from Macau. It comprises a three-storey Chinese-style gate tower with specific opening times, and located in what became Ferreira do Amaral Causeway. The old gate was demolished in 1871 and present Barrier Gates was rebuilt by the Portuguese Government.
Today there is a new border crossing with 54 counters for travelers and 8 for vehicular traffic. The place is surrounded by new high rise apartment block on either side.
There is a bus terminal in front of the Barrier Gate. Buses going there include Nos. 3, 3A, 5, 9, 9A, 10, 10B, 18, 25, 28C and AP1
The Sun Yat-Sen Memorial Park is located just to the west.